diff --git a/aegisub/src/video_provider_quicktime.cpp b/aegisub/src/video_provider_quicktime.cpp
index 7a257cde8..866140193 100644
--- a/aegisub/src/video_provider_quicktime.cpp
+++ b/aegisub/src/video_provider_quicktime.cpp
@@ -78,6 +78,7 @@ QuickTimeVideoProvider::QuickTimeVideoProvider(Aegisub::String filename) {
 
 
 QuickTimeVideoProvider::~QuickTimeVideoProvider() {
+	Close();
 	ExitMovies();
 #ifdef WIN32
 	TerminateQTML();