diff --git a/src/lib/barrier/key_types.h b/src/lib/barrier/key_types.h
index 7a8ea537..035db2d8 100644
--- a/src/lib/barrier/key_types.h
+++ b/src/lib/barrier/key_types.h
@@ -284,6 +284,8 @@ static const KeyID		kKeyAppUser1		= 0xE0B6;
 static const KeyID		kKeyAppUser2		= 0xE0B7;
 static const KeyID		kKeyBrightnessDown	= 0xE0B8;
 static const KeyID		kKeyBrightnessUp	= 0xE0B9;
+static const KeyID		kKeyKbdBrightnessDown	= 0xE0BA;
+static const KeyID		kKeyKbdBrightnessUp	= 0xE0BB;
 static const KeyID		kKeyMissionControl	= 0xE0C0;
 static const KeyID		kKeyLaunchpad		= 0xE0C1;
 
diff --git a/src/lib/platform/XWindowsUtil.cpp b/src/lib/platform/XWindowsUtil.cpp
index 3c90bd62..fb0954d2 100644
--- a/src/lib/platform/XWindowsUtil.cpp
+++ b/src/lib/platform/XWindowsUtil.cpp
@@ -1250,7 +1250,7 @@ XK_uhorn
 // map "Internet" keys to KeyIDs
 static const KeySym s_map1008FF[] =
 {
-    /* 0x00 */ 0, 0, kKeyBrightnessUp, kKeyBrightnessDown, 0, 0, 0, 0,
+    /* 0x00 */ 0, 0, kKeyBrightnessUp, kKeyBrightnessDown, 0, kKeyKbdBrightnessUp, kKeyKbdBrightnessDown, 0,
     /* 0x08 */ 0, 0, 0, 0, 0, 0, 0, 0,
     /* 0x10 */ 0, kKeyAudioDown, kKeyAudioMute, kKeyAudioUp,
     /* 0x14 */ kKeyAudioPlay, kKeyAudioStop, kKeyAudioPrev, kKeyAudioNext,