diff --git a/src/x11/x11_joystick.c b/src/x11/x11_joystick.c
index 5bbe3f9c..d5939146 100644
--- a/src/x11/x11_joystick.c
+++ b/src/x11/x11_joystick.c
@@ -47,6 +47,8 @@
 #include <sys/ioctl.h>
 #include <fcntl.h>
 #include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
 
 // Joystick event types
 #define JS_EVENT_BUTTON     0x01    /* button pressed/released */