diff --git a/include/libnetfilter_log/libipulog.h b/include/libnetfilter_log/libipulog.h
index 8a4ae2a..0994b4a 100644
--- a/include/libnetfilter_log/libipulog.h
+++ b/include/libnetfilter_log/libipulog.h
@@ -5,6 +5,8 @@
 #include <unistd.h>
 #include <fcntl.h>
 
+#include <sys/types.h>	/* for u_int*_t */
+
 /* FIXME: glibc sucks */
 #ifndef MSG_TRUNC 
 #define MSG_TRUNC	0x20