diff --git a/subprojects/gst-devtools/validate/gst/validate/gst-validate-scenario.c b/subprojects/gst-devtools/validate/gst/validate/gst-validate-scenario.c
index 853208a272..107dde1229 100644
--- a/subprojects/gst-devtools/validate/gst/validate/gst-validate-scenario.c
+++ b/subprojects/gst-devtools/validate/gst/validate/gst-validate-scenario.c
@@ -2482,7 +2482,7 @@ _foreach_find_iterator (GQuark field_id, GValue * value,
 /**
  * gst_validate_execute_action:
  * @action_type: The #GstValidateActionType to execute
- * @action: (transfer full) The #GstValidateAction to execute
+ * @action: (transfer full): The #GstValidateAction to execute
  *
  * Executes @action
  */