diff --git a/src/charon/sa/tasks/ike_config.c b/src/charon/sa/tasks/ike_config.c
index 1c222fa8c..09250ff46 100644
--- a/src/charon/sa/tasks/ike_config.c
+++ b/src/charon/sa/tasks/ike_config.c
@@ -122,6 +122,7 @@ static void handle_attribute(private_ike_config_t *this,
 			break;
 		}
 	}
+	enumerator->destroy(enumerator);
 
 	/* and pass it to the handle function */
 	handler = lib->attributes->handle(lib->attributes,