diff --git a/include/compat.h b/include/compat.h
index 235000a8..d81b82bc 100644
--- a/include/compat.h
+++ b/include/compat.h
@@ -1,6 +1,7 @@
 #ifndef COMPAT_H
 #define COMPAT_H
 
+#include <inttypes.h>
 #include <sys/types.h>
 #include <stdarg.h>