diff --git a/Jint/Native/Number/NumberPrototype.cs b/Jint/Native/Number/NumberPrototype.cs
index bbccd350b0..1f1efce98e 100644
--- a/Jint/Native/Number/NumberPrototype.cs
+++ b/Jint/Native/Number/NumberPrototype.cs
@@ -88,7 +88,11 @@ private JsValue ToLocaleString(JsValue thisObject, JsValue[] arguments)
                 var cultureArg = arguments[0].ToString();
                 for (int i = 0; i < systemCultures.Length - 1; i++)
                 {
-                    cultureInfo = systemCultures[i] == cultureArg ? new CultureInfo(systemCultures[i]) : cultureInfo;
+                    if (systemCultures[i] == cultureArg)
+                    {
+                        cultureInfo = new CultureInfo(systemCultures[i]);
+                        break;
+                    }
                 }
             }