diff --git a/codemagic.yaml b/codemagic.yaml
index 0e0fc46..1d540e2 100644
--- a/codemagic.yaml
+++ b/codemagic.yaml
@@ -62,7 +62,8 @@ workflows:
           echo "TAG=$CM_TAG  BUILD_DIR=$CM_BUILD_DIR"
           echo "GITEA_API=$GITEA_API  TOKEN_SET=yes"
 
-          TAG="$CM_TAG"
+          TAG="${CM_TAG:-$(git tag --points-at HEAD | head -1)}"
+          [ -n "$TAG" ] || { echo "ERROR: could not determine tag"; exit 1; }
           VERSION="${TAG#v}"
           IPA="$CM_BUILD_DIR/SilverApple.ipa"