diff --git a/src/lib/platform/OSXMediaKeySupport.m b/src/lib/platform/OSXMediaKeySupport.m
index 6b88f686d..d0f8df1d3 100644
--- a/src/lib/platform/OSXMediaKeySupport.m
+++ b/src/lib/platform/OSXMediaKeySupport.m
@@ -62,6 +62,12 @@ static KeyID convertNXKeyTypeToKeyID(uint32_t const type)
   case NX_KEYTYPE_SOUND_DOWN:
     id = kKeyAudioDown;
     break;
+  case NX_KEYTYPE_BRIGHTNESS_UP:
+    id = kKeyBrightnessUp;
+    break;
+  case NX_KEYTYPE_BRIGHTNESS_DOWN:
+    id = kKeyBrightnessDown;
+    break;
   case NX_KEYTYPE_MUTE:
     id = kKeyAudioMute;
     break;