1 files changed, 1 insertions, 0 deletions
diff --git a/tmux.h b/tmux.h
index 3c88107d..9c8a584c 100644
--- a/tmux.h
+++ b/tmux.h
@@ -1159,6 +1159,7 @@ RB_HEAD(sessions, session);
 #define MOUSE_MASK_CTRL 16
 #define MOUSE_MASK_DRAG 32
 #define MOUSE_MASK_WHEEL 64
+#define MOUSE_MASK_MODIFIERS (MOUSE_MASK_SHIFT|MOUSE_MASK_META|MOUSE_MASK_CTRL)
 
 /* Mouse wheel states. */
 #define MOUSE_WHEEL_UP 0