diff --git a/Makefile.os2 b/Makefile.os2
index f6fc5c3db..1dbe20b92 100644
--- a/Makefile.os2
+++ b/Makefile.os2
@@ -63,7 +63,7 @@ SRCS+= SDL_sysfilesystem.c
 SRCS+= SDL_os2joystick.c SDL_syshaptic.c SDL_sysjoystick.c
 SRCS+= SDL_virtualjoystick.c
 SRCS+= SDL_hidapi.c
-SRCS+= SDL_hidapijoystick.c SDL_hidapi_rumble.c SDL_hidapi_gamecube.c SDL_hidapi_ps4.c SDL_hidapi_ps5.c SDL_hidapi_stadia.c SDL_hidapi_switch.c SDL_hidapi_xbox360.c SDL_hidapi_xbox360w.c SDL_hidapi_xboxone.c SDL_hidapi_steam.c
+SRCS+= SDL_hidapijoystick.c SDL_hidapi_rumble.c SDL_hidapi_gamecube.c SDL_hidapi_luna.c SDL_hidapi_ps4.c SDL_hidapi_ps5.c SDL_hidapi_stadia.c SDL_hidapi_switch.c SDL_hidapi_xbox360.c SDL_hidapi_xbox360w.c SDL_hidapi_xboxone.c SDL_hidapi_steam.c
 SRCS+= SDL_dummyaudio.c SDL_diskaudio.c
 SRCS+= SDL_nullvideo.c SDL_nullframebuffer.c SDL_nullevents.c
 SRCS+= SDL_dummysensor.c