diff --git a/scripts/test-gem-build b/scripts/test-gem-build
index 5d69171..a6a0acb 100755
--- a/scripts/test-gem-build
+++ b/scripts/test-gem-build
@@ -19,7 +19,7 @@ set -x
 
 bundle install --local || bundle install
 
-if [[ "${REF_TYPE}}" != "tag" ]]; then
+if [[ "${REF_TYPE}" != "tag" ]]; then
   bundle exec rake set-version-to-timestamp
 fi