diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 2456a8eae11b75c50ddcfffc8271ea71e8181b8e..b0556203f4c23468d3894dbb106533c057d81ab3 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -20,6 +20,7 @@ mkdocs:
   - bash add_version.sh
   - bash get_modules.sh
   - mkdocs build
+  - bash clean_json.sh site/mkdocs/search_index.json
   artifacts:
     paths:
     - site