diff --git a/core/subtitle_provider.cpp b/core/subtitle_provider.cpp
index 7deebdb9e..d2e299cc8 100644
--- a/core/subtitle_provider.cpp
+++ b/core/subtitle_provider.cpp
@@ -50,6 +50,12 @@ SubtitleProvider::Class::Class(wxString name)
 
 SubtitleProvider *SubtitleProvider::Class::GetProvider(wxString provider_name, AssFile *subs)
 {
-	return (*classes)[provider_name]->Get(subs);
+	SubtitleProvider::Class *sp;
+	if (!classes)
+		throw _T("Subtitle provider not found");
+	sp = (*classes)[provider_name];
+	if (!sp)
+		throw _T("Subtitle provider not found");
+	return sp->Get(subs);
 }
 
diff --git a/core/video_provider_lavc.cpp b/core/video_provider_lavc.cpp
index 7bb76e764..2376a4a5c 100644
--- a/core/video_provider_lavc.cpp
+++ b/core/video_provider_lavc.cpp
@@ -72,7 +72,11 @@ LAVCVideoProvider::LAVCVideoProvider(wxString filename, wxString subfilename) {
 	LoadVideo(filename);
 
 	// Attach subtitles
-	SubtitleProvider::Class::GetProvider(_T("asa"), AssFile::top)->Bind(this);
+	try {
+		SubtitleProvider::Class::GetProvider(_T("asa"), AssFile::top)->Bind(this);
+	} catch (...) {
+		/* warn user? */
+	}
 }