diff --git a/test/lib/create-git-repo.sh b/test/lib/create-git-repo.sh
index 110dfdf..3549904 100644
--- a/test/lib/create-git-repo.sh
+++ b/test/lib/create-git-repo.sh
@@ -4,7 +4,7 @@
   cd "$scriptDir/.."
   amend=--amend
 
-  if [[ ! -e .git ]]; then
+  if [[ ! -e .git ]] || ! git rev-parse HEAD 2>/dev/null; then
     git init
     amend=
   fi