diff --git a/internal/testing/testing.go b/internal/testing/testing.go
index cea545eb0..bea6f2ce9 100644
--- a/internal/testing/testing.go
+++ b/internal/testing/testing.go
@@ -47,5 +47,7 @@ func MainWithRunLoop(m *testing.M) {
 	if err := ebiten.RunGame(g); err != nil {
 		panic(err)
 	}
-	os.Exit(g.code)
+	if g.code != 0 {
+		os.Exit(g.code)
+	}
 }