diff --git a/src/slic3r/GUI/OptionsGroup.cpp b/src/slic3r/GUI/OptionsGroup.cpp
index 958a912a27..9a066b8583 100644
--- a/src/slic3r/GUI/OptionsGroup.cpp
+++ b/src/slic3r/GUI/OptionsGroup.cpp
@@ -2,7 +2,7 @@
 #include "ConfigExceptions.hpp"
 #include "Plater.hpp"
 #include "GUI_App.hpp"
-#include "Mainframe.hpp"
+#include "MainFrame.hpp"
 #include "OG_CustomCtrl.hpp"
 #include "MsgDialog.hpp"
 #include "format.hpp"