diff --git a/libobs/obs-source.c b/libobs/obs-source.c
index d107103b2..609fe7d7f 100644
--- a/libobs/obs-source.c
+++ b/libobs/obs-source.c
@@ -1627,6 +1627,7 @@ static inline void free_async_cache(struct obs_source *source)
 
 	da_resize(source->async_cache, 0);
 	da_resize(source->async_frames, 0);
+	source->cur_async_frame = NULL;
 }
 
 #define MAX_UNUSED_FRAME_DURATION 5