data tree FEATURE allow setting opaque node prefix
diff --git a/src/validation.c b/src/validation.c
index 9e0a42f..fec6d97 100644
--- a/src/validation.c
+++ b/src/validation.c
@@ -648,7 +648,7 @@
     }
 
     /* create dummy opaque node */
-    ret = lyd_new_opaq((struct lyd_node *)parent, snode->module->ctx, snode->name, NULL, snode->module->name, &dummy);
+    ret = lyd_new_opaq((struct lyd_node *)parent, snode->module->ctx, snode->name, NULL, NULL, snode->module->name, &dummy);
     LY_CHECK_GOTO(ret, cleanup);
 
     /* connect it if needed */