diff --git a/aegisub/src/dialog_fonts_collector.cpp b/aegisub/src/dialog_fonts_collector.cpp
index e3e15b8db..d20e79588 100644
--- a/aegisub/src/dialog_fonts_collector.cpp
+++ b/aegisub/src/dialog_fonts_collector.cpp
@@ -589,7 +589,7 @@ bool FontsCollectorThread::AttachFont(wxString filename) {
 // Get fonts from ass overrides
 void FontsCollectorThread::GetFonts (wxString tagName,int par_n,AssOverrideParameter *param,void *usr) {
 	if (tagName == _T("\\fn")) {
-		instance->AddFont(param->AsText(),1);
+		if (instance) instance->AddFont(param->AsText(),1);
 	}
 }
 
diff --git a/aegisub/src/font_file_lister.cpp b/aegisub/src/font_file_lister.cpp
index 91a46e418..73dbb25ad 100644
--- a/aegisub/src/font_file_lister.cpp
+++ b/aegisub/src/font_file_lister.cpp
@@ -85,15 +85,20 @@ void FontFileLister::GetInstance() {
 // Redirect statics to the instance
 wxArrayString FontFileLister::GetFilesWithFace(wxString facename) {
 	GetInstance();
-	return instance->DoGetFilesWithFace(facename);
+	if (instance)
+		return instance->DoGetFilesWithFace(facename);
+	else {
+		wxArrayString ret;
+		return ret;
+	}
 }
 void FontFileLister::Initialize() {
 	GetInstance();
-	instance->DoInitialize();
+	if (instance) instance->DoInitialize();
 }
 void FontFileLister::ClearData() {
 	GetInstance();
-	instance->DoClearData();
+	if (instance) instance->DoClearData();
 }