diff --git a/src/plugins/beautifier/beautifierplugin.cpp b/src/plugins/beautifier/beautifierplugin.cpp
index c5883050287..0aacfd8c797 100644
--- a/src/plugins/beautifier/beautifierplugin.cpp
+++ b/src/plugins/beautifier/beautifierplugin.cpp
@@ -53,6 +53,7 @@
 #include <utils/fileutils.h>
 
 #include <QAction>
+#include <QDir>
 #include <QFileInfo>
 #include <QPlainTextEdit>
 #include <QProcess>