diff --git a/src/keycodes.c b/src/keycodes.c
index c5d9fc6..1cbd04d 100644
--- a/src/keycodes.c
+++ b/src/keycodes.c
@@ -224,4 +224,8 @@
 [223] = tic_key_unknown,
 [SDL_SCANCODE_LCTRL] = tic_key_ctrl,
 [SDL_SCANCODE_LSHIFT] = tic_key_shift,
-[SDL_SCANCODE_LALT] = tic_key_alt,
\ No newline at end of file
+[SDL_SCANCODE_LALT] = tic_key_alt,
+[227] = tic_key_unknown,
+[SDL_SCANCODE_RCTRL] = tic_key_ctrl,
+[SDL_SCANCODE_RSHIFT] = tic_key_shift,
+[SDL_SCANCODE_RALT] = tic_key_alt,