diff --git a/.build.yml b/.build.yml
index 33136a6..502db24 100644
--- a/.build.yml
+++ b/.build.yml
@@ -16,7 +16,7 @@ tasks:
       cd wish
       mix test
   - deploy: |
-      if [ $GIT_REF = "ci" ]; then
+      if [ $GIT_REF = "refs/heads/ci" ]; then
         curl -L https://fly.io/install.sh | sh
         export FLYCTL_INSTALL="/root/.fly"
         export PATH="$FLYCTL_INSTALL/bin:$PATH"