1 files changed, 2 insertions, 1 deletions

diff --git a/src/ButtonTool.hh b/src/ButtonTool.hh
index 522de27..487d0f4 100644
--- a/src/ButtonTool.hh
+++ b/src/ButtonTool.hh
@@ -25,7 +25,8 @@
 #define BUTTONTOOL_HH
 
 #include "GenericTool.hh"
-#include "FbTk/Observer.hh"
+
+#include <X11/Xlib.h>
 
 class ButtonTheme;