diff --git a/shortuuid_test.go b/shortuuid_test.go
index 8ef55ae..18516c0 100644
--- a/shortuuid_test.go
+++ b/shortuuid_test.go
@@ -148,7 +148,9 @@ func TestNewWithNamespace(t *testing.T) {
 		}
 	}
 
-	if NewWithNamespace("") == NewWithNamespace("") {
+	u1 := NewWithNamespace("")
+	u2 := NewWithNamespace("")
+	if u1 == u2 {
 		t.Errorf("NewWithNamespace should generate random uuid with empty namespace")
 	}
 }