diff --git a/.github/actions/run-backend-tests/action.yml b/.github/actions/run-backend-tests/action.yml
index 5ffc9244383e8..c475e15714138 100644
--- a/.github/actions/run-backend-tests/action.yml
+++ b/.github/actions/run-backend-tests/action.yml
@@ -149,7 +149,7 @@ runs:
           env:
               PERSON_ON_EVENTS_V2_ENABLED: ${{ inputs.person-on-events }}
               GROUPS_ON_EVENTS_ENABLED: ${{ inputs.person-on-events }}
-              HOGQL_INSIGHTS_OVERRIDE: ${{ inputs.segment == 'Legacy insights backend' && 0 || 1 }}
+              HOGQL_INSIGHTS_OVERRIDE: ${{ inputs.segment == 'Legacy insights backend' && '0' || '1' }}
           shell: bash
           run: | # async_migrations covered in ci-async-migrations.yml
               pytest ${{