diff --git a/src/tree_schema.c b/src/tree_schema.c
index 9573a70..49e2dd6 100644
--- a/src/tree_schema.c
+++ b/src/tree_schema.c
@@ -692,6 +692,9 @@
         }
     }
 
+    /* success */
+    ++mod->ctx->module_set_id;
+
 cleanup:
     ly_set_free(changed, NULL);
     return ret;