diff --git a/.github/workflows/periodic_pagebench.yml b/.github/workflows/periodic_pagebench.yml
index af877029e4..0622faba33 100644
--- a/.github/workflows/periodic_pagebench.yml
+++ b/.github/workflows/periodic_pagebench.yml
@@ -78,8 +78,10 @@ jobs:
       run: |
         if [ -z "$INPUT_COMMIT_HASH" ]; then
           echo "COMMIT_HASH=$(curl -s https://api.github.com/repos/neondatabase/neon/commits/main | jq -r '.sha')" >> $GITHUB_ENV
+          echo "COMMIT_HASH_TYPE=latest" >> $GITHUB_ENV
         else
           echo "COMMIT_HASH=$INPUT_COMMIT_HASH" >> $GITHUB_ENV
+          echo "COMMIT_HASH_TYPE=manual" >> $GITHUB_ENV
         fi
 
     - name: Start Bench with run_id
@@ -89,7 +91,7 @@ jobs:
         -H 'accept: application/json' \
         -H 'Content-Type: application/json' \
         -H "Authorization: Bearer $API_KEY" \
-        -d "{\"neonRepoCommitHash\": \"${COMMIT_HASH}\"}"
+        -d "{\"neonRepoCommitHash\": \"${COMMIT_HASH}\", \"neonRepoCommitHashType\": \"${COMMIT_HASH_TYPE}\"}"
 
     - name: Poll Test Status
       id: poll_step