diff --git a/hack/make/test-unit b/hack/make/test-unit
index 3e738a733f..7eb216daf0 100644
--- a/hack/make/test-unit
+++ b/hack/make/test-unit
@@ -25,7 +25,8 @@ bundle_test_unit() {
 	go test $COVER $GCCGOFLAGS -ldflags "$LDFLAGS" "${BUILDFLAGS[@]}" $TESTFLAGS $pkg_list
 }
 
-if [[ "$(go version)" =~ "gccgo" ]]; then
+
+if [[ "$(go version)" == *"gccgo"* ]]; then
 	GCCGOFLAGS=-gccgoflags="-lpthread"
 else
 	COVER=-cover