diff --git a/src/video_provider_manager.cpp b/src/video_provider_manager.cpp
index 8ec7c18fc..480b31457 100644
--- a/src/video_provider_manager.cpp
+++ b/src/video_provider_manager.cpp
@@ -50,7 +50,7 @@ namespace {
 		{"Avisynth", CreateAvisynthVideoProvider, false},
 #endif
 #ifdef WITH_BESTSOURCE
-		{"BestSource", CreateBSVideoProvider, false},
+		{"BestSource (SLOW)", CreateBSVideoProvider, false},
 #endif
 	};
 }