--- a/src/gui/image/qiconloader.cpp

+++ b/src/gui/image/qiconloader.cpp

@@ -457,7 +457,7 @@ QThemeIconInfo QIconLoader::findIconHelp

         // If it's possible - find next fallback for the icon

         const int indexOfDash = iconNameFallback.lastIndexOf(QLatin1Char('-'));

-        if (indexOfDash == -1)

+        if (indexOfDash < 9)

             break;

         iconNameFallback.truncate(indexOfDash);