diff --git a/src/gtk/textctrl.cpp b/src/gtk/textctrl.cpp
index 7133259dcb..324eb6b2de 100644
--- a/src/gtk/textctrl.cpp
+++ b/src/gtk/textctrl.cpp
@@ -15,6 +15,7 @@
 #include "wx/textctrl.h"
 
 #ifndef WX_PRECOMP
+    #include "wx/app.h"
     #include "wx/intl.h"
     #include "wx/log.h"
     #include "wx/utils.h"