diff --git a/pkg/operator/k8sutil/prometheus_test.go b/pkg/operator/k8sutil/prometheus_test.go
index ef6fa8e69..db9ad42cb 100644
--- a/pkg/operator/k8sutil/prometheus_test.go
+++ b/pkg/operator/k8sutil/prometheus_test.go
@@ -18,7 +18,6 @@ limitations under the License.
 package k8sutil
 
 import (
-	"os"
 	"path"
 	"testing"
 
@@ -38,8 +37,8 @@ func TestGetServiceMonitor(t *testing.T) {
 }
 
 func TestGetPrometheusRule(t *testing.T) {
-	gopath := os.Getenv("GOPATH")
-	filePath := path.Join(gopath, "src/github.com/rook/rook/cluster/examples/kubernetes/ceph/monitoring/prometheus-ceph-v14-rules.yaml")
+	projectRoot := util.PathToProjectRoot()
+	filePath := path.Join(projectRoot, "/cluster/examples/kubernetes/ceph/monitoring/prometheus-ceph-v14-rules.yaml")
 	rules, err := GetPrometheusRule(filePath)
 	assert.Nil(t, err)
 	assert.Equal(t, "prometheus-ceph-rules", rules.GetName())