diff --git a/hack/gofmt_check.sh b/hack/gofmt_check.sh
index dec5f47..7edad12 100755
--- a/hack/gofmt_check.sh
+++ b/hack/gofmt_check.sh
@@ -8,7 +8,9 @@ $BAZEL_B @go_sdk//...
 
 export PATH="$(bazel info output_base)/external/go_sdk/bin:$PATH"
 
-if [[ -z $(go fmt -n $(go list ./... | grep -v /vendor/) | sed 's/ -w//') ]]; then
+$(go fmt -n $(go list ./... | grep -v /vendor/) | sed 's/ -w//') > /tmp/fmt
+
+if [[ -n "$(cat /tmp/fmt)" ]]; then
   echo "Go files must be formatted with gofmt. Please run:"
   echo '  go fmt $(go list ./... | grep -v /vendor/)'
   exit 1