diff --git a/hours/viewsets.py b/hours/viewsets.py
index 2e9a680b..971d2e1a 100644
--- a/hours/viewsets.py
+++ b/hours/viewsets.py
@@ -652,9 +652,10 @@ def copy_date_periods(self, request, pk=None):
         parameters=[
             OpenApiParameter(
                 "resource",
-                OpenApiTypes.UUID,
+                OpenApiTypes.STR,
                 OpenApiParameter.QUERY,
-                description="Filter by resource id or multiple resource ids (comma-separated)",  # noqa
+                description="Filter by resource id or multiple resource ids "
+                "(comma-separated)",
             ),
             OpenApiParameter(
                 "data_source",