diff --git a/src/core/localization.cpp b/src/core/localization.cpp
index ded2928c5..70ab54dbe 100644
--- a/src/core/localization.cpp
+++ b/src/core/localization.cpp
@@ -9,6 +9,7 @@
 #include <QTranslator>
 #include <QDir>
 #include <QFileInfoList>
+#include <QLocale>
 
 
 Localization::Localization() {