diff --git a/dlls/dinput8/Makefile.in b/dlls/dinput8/Makefile.in
index ac30237c53ce..5001699be762 100644
--- a/dlls/dinput8/Makefile.in
+++ b/dlls/dinput8/Makefile.in
@@ -18,6 +18,7 @@ C_SRCS = \
 	joystick_linuxinput.c \
 	joystick_sdl.c \
 	joystick_osx.c \
+	joystick_sdl.c \
 	keyboard.c \
 	mouse.c