1 files changed, 1 insertions, 1 deletions
diff --git a/tmux.h b/tmux.h
index 2d9e992a..1333bdf0 100644
--- a/tmux.h
+++ b/tmux.h
@@ -110,7 +110,7 @@ extern char   **environ;
 #define KEYC_SHIFT 0x8000
 #define KEYC_PREFIX 0x10000
 
-/* Mask to obtain key w/o modifiers */
+/* Mask to obtain key w/o modifiers. */
 #define KEYC_MASK_MOD (KEYC_ESCAPE|KEYC_CTRL|KEYC_SHIFT|KEYC_PREFIX)
 #define KEYC_MASK_KEY (~KEYC_MASK_MOD)