diff --git a/src/foraging_gui/Foraging.py b/src/foraging_gui/Foraging.py
index 534c1f7db..3d377eccc 100644
--- a/src/foraging_gui/Foraging.py
+++ b/src/foraging_gui/Foraging.py
@@ -1087,7 +1087,7 @@ def _check_drop_frames(self, save_tag=1):
                     self.to_check_drop_frames = 0
                     return
 
-                if not os.path.is_dir(video_folder):
+                if not os.path.isdir(video_folder):
                     self.trigger_length=0
                     self.to_check_drop_frames=0
                     logging.warning('Hit unexpected edge case, no video folder, but video trigger file exists')