diff --git a/openedx/core/djangoapps/content_libraries/views.py b/openedx/core/djangoapps/content_libraries/views.py
index 94197f508775..c8c91d50331f 100644
--- a/openedx/core/djangoapps/content_libraries/views.py
+++ b/openedx/core/djangoapps/content_libraries/views.py
@@ -799,6 +799,7 @@ def put(self, request, usage_key_str, file_path):
         """
         Replace a static asset file belonging to this block.
         """
+        file_path = file_path.replace(" ", "_")  # Messes up url/name correspondence due to URL encoding.
         usage_key = LibraryUsageLocatorV2.from_string(usage_key_str)
         api.require_permission_for_library_key(
             usage_key.lib_key, request.user, permissions.CAN_EDIT_THIS_CONTENT_LIBRARY,