diff --git a/.github/workflows/nightly-doc-build.yml b/.github/workflows/nightly-doc-build.yml
index 4852e23202d9..d7a88752ebd1 100644
--- a/.github/workflows/nightly-doc-build.yml
+++ b/.github/workflows/nightly-doc-build.yml
@@ -52,6 +52,7 @@ jobs:
         env:
           ANSYSLMD_LICENSE_FILE: ${{ format('1055@{0}', secrets.LICENSE_SERVER) }}
           PYFLUENT_FLUENT_PORT: 63084
+          PYFLUENT_START_INSTANCE: 0
 
       - name: Deploy
         uses: JamesIves/github-pages-deploy-action@4.1.4