diff --git a/src/rdev.rs b/src/rdev.rs
index 5009995..f04de7c 100644
--- a/src/rdev.rs
+++ b/src/rdev.rs
@@ -229,6 +229,10 @@ pub enum Key {
     PlayPause,
     PlayCd,
     NextTrack,
+    LaunchMail,
+    LaunchMediaSelect,
+    LaunchApp1,
+    LaunchApp2,
     Unknown(u32),
 }
 
diff --git a/src/windows/keycodes.rs b/src/windows/keycodes.rs
index caa0b3a..b19bb33 100644
--- a/src/windows/keycodes.rs
+++ b/src/windows/keycodes.rs
@@ -3,7 +3,7 @@ use std::convert::TryInto;
 use winapi::shared::minwindef::WORD;
 
 macro_rules! decl_keycodes {
-    ($($key:ident, $code:literal),*) => {
+    ($($key:ident, $code:literal),* $(,)?) => {
         //TODO: make const when rust lang issue #49146 is fixed
         pub fn code_from_key(key: Key) -> Option<WORD> {
             match key {
@@ -151,7 +151,11 @@ decl_keycodes! {
     VolumeUp, 175,
     NextTrack, 176,
     PreviousTrack, 177,
-    PlayPause, 179
+    PlayPause, 179,
+    LaunchMail , 180,
+    LaunchMediaSelect , 181,
+    LaunchApp1 , 182,
+    LaunchApp2 , 183,
 }
 
 #[cfg(test)]