diff --git a/manimlib/scene/scene.py b/manimlib/scene/scene.py
index b3cceb68..4e69e6b2 100644
--- a/manimlib/scene/scene.py
+++ b/manimlib/scene/scene.py
@@ -719,7 +719,7 @@ class Scene(Container):
         )
         with open(file_list, 'w') as fp:
             for pf_path in partial_movie_files:
-                fp.write("file {}\n".format(pf_path))
+                fp.write("file {}\n".format(pf_path).replace('\\', '/'))
 
         movie_file_path = self.get_movie_file_path()
         commands = [