diff --git a/prefs.js b/prefs.js
index 1dee9f7..487fdc9 100644
--- a/prefs.js
+++ b/prefs.js
@@ -12,7 +12,7 @@ const hotKeysLabels = {
     'next-window': 'Focus the next window',
     'previous-workspace': 'Focus the previous workspace',
     'next-workspace': 'Focus the next workspace',
-    'kill-focused-window': 'kill the current window',
+    'kill-focused-window': 'Kill the current window',
     'move-window-left': 'Move the current window to the left',
     'move-window-right': 'Move the current window to the right',
     'move-window-top': 'Move the current window to upper workspace',