diff --git a/libevdev/libevdev.h b/libevdev/libevdev.h
index 79c13b3..5e42f32 100644
--- a/libevdev/libevdev.h
+++ b/libevdev/libevdev.h
@@ -25,6 +25,7 @@
 
 #include <config.h>
 #include <linux/input.h>
+#include <stdarg.h>
 
 struct libevdev;