diff --git a/aegisub/src/ass_export_filter.cpp b/aegisub/src/ass_export_filter.cpp
index 9fb7d219b..98716b01c 100644
--- a/aegisub/src/ass_export_filter.cpp
+++ b/aegisub/src/ass_export_filter.cpp
@@ -39,11 +39,10 @@
 #include "ass_export_filter.h"
 #include "utils.h"
 
-AssExportFilter::AssExportFilter(wxString const& name, wxString const& description, int priority, bool auto_apply)
+AssExportFilter::AssExportFilter(wxString const& name, wxString const& description, int priority)
 : name(name)
 , priority(priority)
 , description(description)
-, auto_apply(auto_apply)
 {
 }
 
diff --git a/aegisub/src/ass_export_filter.h b/aegisub/src/ass_export_filter.h
index bd74a5e37..a36744462 100644
--- a/aegisub/src/ass_export_filter.h
+++ b/aegisub/src/ass_export_filter.h
@@ -77,17 +77,12 @@ class AssExportFilter {
 	/// User-visible description of this filter
 	wxString description;
 
-	/// Should this filter be automatically applied when sending subtitles to
-	/// the renderer and exporting to non-ASS formats
-	bool auto_apply;
-
 public:
-	AssExportFilter(wxString const& name, wxString const& description, int priority = 0, bool auto_apply = false);
+	AssExportFilter(wxString const& name, wxString const& description, int priority = 0);
 	virtual ~AssExportFilter() { };
 
 	wxString const& GetName() const { return name; }
 	wxString const& GetDescription() const { return description; }
-	bool GetAutoApply() const { return auto_apply; }
 
 	/// Process subtitles
 	/// @param subs Subtitles to process
diff --git a/aegisub/src/ass_exporter.cpp b/aegisub/src/ass_exporter.cpp
index d632d27ff..de2e277ed 100644
--- a/aegisub/src/ass_exporter.cpp
+++ b/aegisub/src/ass_exporter.cpp
@@ -84,13 +84,6 @@ void AssExporter::AddFilter(wxString const& name) {
 	filters.push_back(filter);
 }
 
-void AssExporter::AddAutoFilters() {
-	for (auto filter : *AssExportFilterChain::GetFilterList()) {
-		if (filter->GetAutoApply())
-			filters.push_back(filter);
-	}
-}
-
 wxArrayString AssExporter::GetAllFilterNames() const {
 	wxArrayString names;
 	transform(filter_list_begin(), filter_list_end(),
diff --git a/aegisub/src/ass_exporter.h b/aegisub/src/ass_exporter.h
index 93e72cc9a..86764e5d2 100644
--- a/aegisub/src/ass_exporter.h
+++ b/aegisub/src/ass_exporter.h
@@ -71,10 +71,6 @@ public:
 	/// @throws wxString if filter is not found
 	void AddFilter(wxString const& name);
 
-	/// Add all export filters which have indicated they should apply in
-	/// non-transform contexts
-	void AddAutoFilters();
-
 	/// Run all added export filters
 	/// @param parent_window Parent window the filters should use when opening dialogs
 	/// @param copy Should the file be copied rather than transformed in-place?
diff --git a/aegisub/src/export_fixstyle.cpp b/aegisub/src/export_fixstyle.cpp
index ccdcc7c74..f43a5003e 100644
--- a/aegisub/src/export_fixstyle.cpp
+++ b/aegisub/src/export_fixstyle.cpp
@@ -47,7 +47,7 @@
 #include <libaegisub/of_type_adaptor.h>
 
 AssFixStylesFilter::AssFixStylesFilter()
-: AssExportFilter(_("Fix Styles"), _("Fixes styles by replacing any style that isn't available on file with Default."), -5000, true)
+: AssExportFilter(_("Fix Styles"), _("Fixes styles by replacing any style that isn't available on file with Default."), -5000)
 {
 }
 
diff --git a/aegisub/src/threaded_frame_source.cpp b/aegisub/src/threaded_frame_source.cpp
index 1db868a6d..a17eb8467 100644
--- a/aegisub/src/threaded_frame_source.cpp
+++ b/aegisub/src/threaded_frame_source.cpp
@@ -28,9 +28,9 @@
 #include <boost/range/algorithm_ext.hpp>
 
 #include "ass_dialogue.h"
-#include "ass_exporter.h"
 #include "ass_file.h"
 #include "compat.h"
+#include "export_fixstyle.h"
 #include "include/aegisub/context.h"
 #include "include/aegisub/subtitles_provider.h"
 #include "video_frame.h"
@@ -82,16 +82,7 @@ std::shared_ptr<AegiVideoFrame> ThreadedFrameSource::ProcFrame(int frameNum, dou
 					singleFrame = SUBS_FILE_ALREADY_LOADED;
 				}
 				else {
-					// This will crash if any of the export filters try to use
-					// anything but the subtitles, but that wouldn't be safe to
-					// do anyway
-					agi::Context c;
-					memset(&c, 0, sizeof c);
-					c.ass = subs.get();
-
-					AssExporter exporter(&c);
-					exporter.AddAutoFilters();
-					exporter.ExportTransform();
+					AssFixStylesFilter().ProcessSubs(subs.get(), nullptr);
 
 					singleFrame = frameNum;
 					// Copying a nontrivially sized AssFile is fairly slow, so