diff --git a/libaegisub/common/option_visit.cpp b/libaegisub/common/option_visit.cpp
index 7c2f5bacc..7cb9f25fd 100644
--- a/libaegisub/common/option_visit.cpp
+++ b/libaegisub/common/option_visit.cpp
@@ -37,12 +37,11 @@ ConfigVisitor::ConfigVisitor(OptionValueMap &val, const std::string &member_name
 {
 }
 
-template<class ErrorType>
 void ConfigVisitor::Error(const char *message) {
 	if (ignore_errors)
 		LOG_E("option/load/config_visitor") << "Error loading option from user configuration: " << message;
 	else
-		throw ErrorType(message);
+		throw OptionJsonValueError(message);
 }
 
 void ConfigVisitor::Visit(const json::Object& object) {
@@ -62,11 +61,11 @@ std::unique_ptr<OptionValue> ConfigVisitor::ReadArray(json::Array const& src, st
 
 	for (json::Object const& obj : src) {
 		if (obj.size() != 1) {
-			Error<OptionJsonValueArray>("Invalid array member");
+			Error("Invalid array member");
 			return nullptr;
 		}
 		if (obj.begin()->first != array_type) {
-			Error<OptionJsonValueArray>("Attempt to insert value into array of wrong type");
+			Error("Attempt to insert value into array of wrong type");
 			return nullptr;
 		}
 
@@ -78,13 +77,13 @@ std::unique_ptr<OptionValue> ConfigVisitor::ReadArray(json::Array const& src, st
 
 void ConfigVisitor::Visit(const json::Array& array) {
 	if (array.empty()) {
-		Error<OptionJsonValueArray>("Cannot infer the type of an empty array");
+		Error("Cannot infer the type of an empty array");
 		return;
 	}
 
 	json::Object const& front = array.front();
 	if (front.size() != 1) {
-		Error<OptionJsonValueArray>("Invalid array member");
+		Error("Invalid array member");
 		return;
 	}
 
@@ -101,7 +100,7 @@ void ConfigVisitor::Visit(const json::Array& array) {
 	else if (array_type == "color")
 		AddOptionValue(ReadArray<OptionValueListColor>(array, array_type));
 	else
-		Error<OptionJsonValueArray>("Array type not handled");
+		Error("Array type not handled");
 }
 
 void ConfigVisitor::Visit(const json::Integer& number) {
@@ -130,7 +129,7 @@ void ConfigVisitor::Visit(const json::Boolean& boolean) {
 }
 
 void ConfigVisitor::Visit(const json::Null& null) {
-	Error<OptionJsonValueNull>("Attempt to read null value");
+	Error("Attempt to read null value");
 }
 
 void ConfigVisitor::AddOptionValue(std::unique_ptr<OptionValue>&& opt) {
@@ -148,7 +147,7 @@ void ConfigVisitor::AddOptionValue(std::unique_ptr<OptionValue>&& opt) {
 		try {
 			values[name]->Set(opt.get());
 		}
-		catch (agi::OptionValueError const& e) {
+		catch (agi::InternalError const& e) {
 			if (ignore_errors)
 				LOG_E("option/load/config_visitor") << "Error loading option from user configuration: " << e.GetMessage();
 			else
diff --git a/libaegisub/common/option_visit.h b/libaegisub/common/option_visit.h
index 529db404a..529a02055 100644
--- a/libaegisub/common/option_visit.h
+++ b/libaegisub/common/option_visit.h
@@ -26,9 +26,6 @@
 namespace agi {
 
 DEFINE_EXCEPTION(OptionJsonValueError, Exception);
-DEFINE_EXCEPTION(OptionJsonValueArray, OptionJsonValueError);
-DEFINE_EXCEPTION(OptionJsonValueSingle, OptionJsonValueError);
-DEFINE_EXCEPTION(OptionJsonValueNull, OptionJsonValueError);
 
 class ConfigVisitor final : public json::ConstVisitor {
 	/// Option map being populated
@@ -42,7 +39,6 @@ class ConfigVisitor final : public json::ConstVisitor {
 	/// default value is changed to the new one
 	bool replace;
 
-	template<class ErrorType>
 	void Error(const char *message);
 
 	template<class OptionValueType>
diff --git a/libaegisub/include/libaegisub/option.h b/libaegisub/include/libaegisub/option.h
index e2a9d56dd..ddf35d6f2 100644
--- a/libaegisub/include/libaegisub/option.h
+++ b/libaegisub/include/libaegisub/option.h
@@ -35,7 +35,6 @@ namespace agi {
 
 DEFINE_EXCEPTION(OptionError, Exception);
 DEFINE_EXCEPTION(OptionErrorNotFound, OptionError);
-DEFINE_EXCEPTION(OptionErrorDuplicateKey, OptionError);
 
 class OptionValue;
 
diff --git a/libaegisub/include/libaegisub/option_value.h b/libaegisub/include/libaegisub/option_value.h
index f9fda0fd9..0c088a6be 100644
--- a/libaegisub/include/libaegisub/option_value.h
+++ b/libaegisub/include/libaegisub/option_value.h
@@ -27,9 +27,6 @@
 #undef Bool
 
 namespace agi {
-DEFINE_EXCEPTION(OptionValueError, Exception);
-DEFINE_EXCEPTION(OptionValueErrorInvalidType, OptionValueError);
-
 /// Option type
 /// No bitsets here.
 enum class OptionType {
@@ -67,8 +64,8 @@ class OptionValue {
 		throw agi::InternalError("Invalid option type");
 	}
 
-	OptionValueErrorInvalidType TypeError(OptionType type) const {
-		return OptionValueErrorInvalidType("Invalid type for option " + name + ": expected " + TypeToString(type) + ", got " + TypeToString(GetType()));
+	InternalError TypeError(OptionType type) const {
+		return InternalError("Invalid type for option " + name + ": expected " + TypeToString(type) + ", got " + TypeToString(GetType()));
 	}
 
 	template<typename T>
diff --git a/src/command/tool.cpp b/src/command/tool.cpp
index a94d24cb2..4c7a7e3d4 100644
--- a/src/command/tool.cpp
+++ b/src/command/tool.cpp
@@ -206,8 +206,8 @@ struct tool_translation_assistant final : public Command {
 		try {
 			c->dialog->ShowModal<DialogTranslation>(c);
 		}
-		catch (agi::Exception const& e) {
-			wxMessageBox(to_wx(e.GetMessage()));
+		catch (DialogTranslation::NothingToTranslate const&) {
+			wxMessageBox(_("There is nothing to translate in the file."));
 		}
 	}
 };
diff --git a/src/dialog_translation.cpp b/src/dialog_translation.cpp
index b9b59d928..c5fb4ffb8 100644
--- a/src/dialog_translation.cpp
+++ b/src/dialog_translation.cpp
@@ -159,7 +159,7 @@ DialogTranslation::DialogTranslation(agi::Context *c)
 	blocks = active_line->ParseTags();
 	if (bad_block(blocks[0])) {
 		if (!NextBlock())
-			throw NothingToTranslate(from_wx(_("There is nothing to translate in the file.")));
+			throw NothingToTranslate();
 	}
 	else
 		UpdateDisplay();
diff --git a/src/dialog_translation.h b/src/dialog_translation.h
index 9901c1186..295a0cbba 100644
--- a/src/dialog_translation.h
+++ b/src/dialog_translation.h
@@ -75,5 +75,5 @@ public:
 	void Commit(bool next);
 	void InsertOriginal();
 
-	DEFINE_EXCEPTION(NothingToTranslate, agi::Exception);;
+	struct NothingToTranslate { };
 };
diff --git a/tests/tests/option.cpp b/tests/tests/option.cpp
index e5f588b14..7573c58b3 100644
--- a/tests/tests/option.cpp
+++ b/tests/tests/option.cpp
@@ -212,50 +212,50 @@ TEST_F(lagi_option, empty_array_decays_to_first_used_type) {
 		empty_arr_options opt;
 		EXPECT_NO_THROW(opt.Get("arr")->GetListBool());
 
-		EXPECT_THROW(opt.Get("arr")->GetListColor(),  agi::OptionValueErrorInvalidType);
-		EXPECT_THROW(opt.Get("arr")->GetListDouble(), agi::OptionValueErrorInvalidType);
-		EXPECT_THROW(opt.Get("arr")->GetListInt(),    agi::OptionValueErrorInvalidType);
-		EXPECT_THROW(opt.Get("arr")->GetListString(), agi::OptionValueErrorInvalidType);
+		EXPECT_THROW(opt.Get("arr")->GetListColor(),  agi::InternalError);
+		EXPECT_THROW(opt.Get("arr")->GetListDouble(), agi::InternalError);
+		EXPECT_THROW(opt.Get("arr")->GetListInt(),    agi::InternalError);
+		EXPECT_THROW(opt.Get("arr")->GetListString(), agi::InternalError);
 	}
 
 	{
 		empty_arr_options opt;
 		EXPECT_NO_THROW(opt.Get("arr")->GetListColor());
 
-		EXPECT_THROW(opt.Get("arr")->GetListBool(),   agi::OptionValueErrorInvalidType);
-		EXPECT_THROW(opt.Get("arr")->GetListDouble(), agi::OptionValueErrorInvalidType);
-		EXPECT_THROW(opt.Get("arr")->GetListInt(),    agi::OptionValueErrorInvalidType);
-		EXPECT_THROW(opt.Get("arr")->GetListString(), agi::OptionValueErrorInvalidType);
+		EXPECT_THROW(opt.Get("arr")->GetListBool(),   agi::InternalError);
+		EXPECT_THROW(opt.Get("arr")->GetListDouble(), agi::InternalError);
+		EXPECT_THROW(opt.Get("arr")->GetListInt(),    agi::InternalError);
+		EXPECT_THROW(opt.Get("arr")->GetListString(), agi::InternalError);
 	}
 
 	{
 		empty_arr_options opt;
 		EXPECT_NO_THROW(opt.Get("arr")->GetListDouble());
 
-		EXPECT_THROW(opt.Get("arr")->GetListBool(),   agi::OptionValueErrorInvalidType);
-		EXPECT_THROW(opt.Get("arr")->GetListColor(),  agi::OptionValueErrorInvalidType);
-		EXPECT_THROW(opt.Get("arr")->GetListInt(),    agi::OptionValueErrorInvalidType);
-		EXPECT_THROW(opt.Get("arr")->GetListString(), agi::OptionValueErrorInvalidType);
+		EXPECT_THROW(opt.Get("arr")->GetListBool(),   agi::InternalError);
+		EXPECT_THROW(opt.Get("arr")->GetListColor(),  agi::InternalError);
+		EXPECT_THROW(opt.Get("arr")->GetListInt(),    agi::InternalError);
+		EXPECT_THROW(opt.Get("arr")->GetListString(), agi::InternalError);
 	}
 
 	{
 		empty_arr_options opt;
 		EXPECT_NO_THROW(opt.Get("arr")->GetListInt());
 
-		EXPECT_THROW(opt.Get("arr")->GetListBool(),   agi::OptionValueErrorInvalidType);
-		EXPECT_THROW(opt.Get("arr")->GetListColor(),  agi::OptionValueErrorInvalidType);
-		EXPECT_THROW(opt.Get("arr")->GetListDouble(), agi::OptionValueErrorInvalidType);
-		EXPECT_THROW(opt.Get("arr")->GetListString(), agi::OptionValueErrorInvalidType);
+		EXPECT_THROW(opt.Get("arr")->GetListBool(),   agi::InternalError);
+		EXPECT_THROW(opt.Get("arr")->GetListColor(),  agi::InternalError);
+		EXPECT_THROW(opt.Get("arr")->GetListDouble(), agi::InternalError);
+		EXPECT_THROW(opt.Get("arr")->GetListString(), agi::InternalError);
 	}
 
 	{
 		empty_arr_options opt;
 		EXPECT_NO_THROW(opt.Get("arr")->GetListString());
 
-		EXPECT_THROW(opt.Get("arr")->GetListBool(),   agi::OptionValueErrorInvalidType);
-		EXPECT_THROW(opt.Get("arr")->GetListColor(),  agi::OptionValueErrorInvalidType);
-		EXPECT_THROW(opt.Get("arr")->GetListDouble(), agi::OptionValueErrorInvalidType);
-		EXPECT_THROW(opt.Get("arr")->GetListInt(),    agi::OptionValueErrorInvalidType);
+		EXPECT_THROW(opt.Get("arr")->GetListBool(),   agi::InternalError);
+		EXPECT_THROW(opt.Get("arr")->GetListColor(),  agi::InternalError);
+		EXPECT_THROW(opt.Get("arr")->GetListDouble(), agi::InternalError);
+		EXPECT_THROW(opt.Get("arr")->GetListInt(),    agi::InternalError);
 	}
 }