diff --git a/.github/workflows/build_loop.yml b/.github/workflows/build_loop.yml
index f4c549cd82..4e7a01ca1a 100644
--- a/.github/workflows/build_loop.yml
+++ b/.github/workflows/build_loop.yml
@@ -70,7 +70,7 @@ jobs:
       run: |
         # Get ref for LoopKit/LoopWorkspace:dev
         SHA=$(curl -sS https://api.github.com/repos/${{ env.UPSTREAM_REPO }}/git/refs \
-          | jq '.[] | select(.ref == "refs/heads/dev" ) | .object.sha' \
+          | jq -r '.[] | select(.ref == "refs/heads/dev" ) | .object.sha' \
           | tr -d '"'
         );