1 files changed, 4 insertions, 0 deletions
diff --git a/tmux.h b/tmux.h
index e8f75aff..ef68c66b 100644
--- a/tmux.h
+++ b/tmux.h
@@ -87,6 +87,10 @@ struct tmuxproc;
 #define KEYC_NONE 0xffff00000000ULL
 #define KEYC_UNKNOWN 0xfffe00000000ULL
 #define KEYC_BASE 0x000010000000ULL
+#define KEYC_USER 0x000020000000ULL
+
+/* Available user keys. */
+#define KEYC_NUSER 1000
 
 /* Key modifier bits. */
 #define KEYC_ESCAPE 0x200000000000ULL