diff --git a/src/plugins/GreaseMonkey/gm_jsobject.cpp b/src/plugins/GreaseMonkey/gm_jsobject.cpp
index ba2e4cad2..840845fa8 100644
--- a/src/plugins/GreaseMonkey/gm_jsobject.cpp
+++ b/src/plugins/GreaseMonkey/gm_jsobject.cpp
@@ -47,7 +47,7 @@ QVariant GM_JSObject::getValue(const QString &nspace, const QString &name, const
         return dValue;
     }
 
-    switch (savedValue.at(0).toAscii()) {
+    switch (savedValue.at(0).unicode()) {
     case 'b':
         return QVariant(actualValue == QLatin1String("true"));