diff --git a/dev-tools/release/promote_rc.sh b/dev-tools/release/promote_rc.sh
index 9d8459a443de..af48a4c4de13 100755
--- a/dev-tools/release/promote_rc.sh
+++ b/dev-tools/release/promote_rc.sh
@@ -231,7 +231,7 @@ else
   echo "Updating brew"
   echo "============================================================"
   set -x
-  cd ${BREW_DIR}/Formula
+  cd ${BREW_DIR}/Formula/a
   git pull
   git remote add myfork git@github.com:${GITHUB_USER}/homebrew-core.git || true
   if ! git fetch myfork ; then