diff --git a/aegisub/src/ass_dialogue.cpp b/aegisub/src/ass_dialogue.cpp
index 8cc5fd9f5..696a94e9d 100644
--- a/aegisub/src/ass_dialogue.cpp
+++ b/aegisub/src/ass_dialogue.cpp
@@ -754,7 +754,7 @@ void AssDialogue::SetMarginString(const wxString origvalue,int which) {
 	if (value > 9999) value = 9999;
 
 	// Assign
-	if (which < 0 || which >= 4) throw new Aegisub::InvalidMarginIdError;
+	if (which < 0 || which >= 4) throw Aegisub::InvalidMarginIdError();
 	Margin[which] = value;
 }
 
@@ -766,7 +766,7 @@ void AssDialogue::SetMarginString(const wxString origvalue,int which) {
 /// @return 
 ///
 wxString AssDialogue::GetMarginString(int which,bool pad) {
-	if (which < 0 || which >= 4) throw new Aegisub::InvalidMarginIdError;
+	if (which < 0 || which >= 4) throw Aegisub::InvalidMarginIdError();
 	int value = Margin[which];
 	if (pad) return wxString::Format(_T("%04i"),value);
 	else return wxString::Format(_T("%i"),value);
diff --git a/aegisub/src/ass_style.cpp b/aegisub/src/ass_style.cpp
index 035235a61..db9a3ac66 100644
--- a/aegisub/src/ass_style.cpp
+++ b/aegisub/src/ass_style.cpp
@@ -478,7 +478,7 @@ void AssStyle::UpdateData() {
 /// @param which 
 ///
 void AssStyle::SetMarginString(const wxString str,int which) {
-	if (which < 0 || which >= 4) throw new Aegisub::InvalidMarginIdError;
+	if (which < 0 || which >= 4) throw Aegisub::InvalidMarginIdError();
 	if (!str.IsNumber()) throw _T("Invalid margin value");
 	long value;
 	str.ToLong(&value);
@@ -495,7 +495,7 @@ void AssStyle::SetMarginString(const wxString str,int which) {
 /// @return 
 ///
 wxString AssStyle::GetMarginString(int which) {
-	if (which < 0 || which >= 4) throw new Aegisub::InvalidMarginIdError;
+	if (which < 0 || which >= 4) throw Aegisub::InvalidMarginIdError();
 	wxString result = wxString::Format(_T("%04i"),Margin[which]);
 	return result;
 }