diff --git a/.github/workflows/horizon.yml b/.github/workflows/horizon.yml
index 345ca21faf..acb6c65263 100644
--- a/.github/workflows/horizon.yml
+++ b/.github/workflows/horizon.yml
@@ -108,7 +108,7 @@ jobs:
       - name: Calculate the source hash
         id: calculate_source_hash
         run: |
-          combined_hash=$(echo "horizon-hash-${{ hashFiles('./horizon') }}-${{ hashFiles('./clients/horizonclient/**') }}-${{ hashFiles('./protocols/horizon/**') }}-${{ hashFiles('./txnbuild/**') }}-${{ hashFiles('./ingest/**') }}-${{ hashFiles('./xdr/**') }}-${{ hashFiles('./services/**') }}-${{ env.PROTOCOL_20_CORE_DOCKER_IMG }}-${{ env.PROTOCOL_19_CORE_DOCKER_IMG }}-${{ github.job }}" | sha256sum | cut -d ' ' -f 1)
+          combined_hash=$(echo "horizon-hash-${{ hashFiles('./horizon') }}-${{ hashFiles('./clients/horizonclient/**') }}-${{ hashFiles('./protocols/horizon/**') }}-${{ hashFiles('./txnbuild/**') }}-${{ hashFiles('./ingest/**') }}-${{ hashFiles('./xdr/**') }}-${{ hashFiles('./services/**') }}-${{ env.PROTOCOL_20_CORE_DOCKER_IMG }}-${{ env.PROTOCOL_19_CORE_DOCKER_IMG }}-${{ env.PREFIX }}" | sha256sum | cut -d ' ' -f 1)
           echo "COMBINED_SOURCE_HASH=$combined_hash" >> "$GITHUB_ENV"
 
       - name: Restore Horizon binary and integration tests source hash to cache