diff --git a/qad/widgets/session_manager.cpp b/qad/widgets/session_manager.cpp
index ce17342..fa06bd0 100644
--- a/qad/widgets/session_manager.cpp
+++ b/qad/widgets/session_manager.cpp
@@ -208,12 +208,12 @@ QMap<const QMetaObject *, QByteArray> SessionManager::metaFunctions(const QSet<Q
 		if (!funcs.contains(mo)) {
 			for (int i = 0; i < mo->methodCount(); ++i) {
 				QMetaMethod mm = mo->method(i);
-				QString mmn =
+				QByteArray mmn =
 #if QT_VERSION >= 0x050000
 							mm.name();
 #else
 							mm.signature();
-				mmn = mmn.left(mmn.indexOf("("));
+				mmn = mmn.left(mmn.indexOf('('));
 #endif
 
 				if (mmn == fname) {