diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f6db70424aa93b630624e0bce3d1a52b452c937d..aa6c2889ce0afd69a56f1fe459199a6c6ca5d446 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -56,7 +56,7 @@ build:
     # Wasm executor
     - cp wasm_exec.js release/
     # ndf reference file
-    - cp src/ndf.js release/
+    - cp src/ndf.json release/
   artifacts:
     paths:
       - release/