diff --git a/include/linux/inet_diag.h b/include/linux/inet_diag.h
index 6e8bc548635..bc8c4902208 100644
--- a/include/linux/inet_diag.h
+++ b/include/linux/inet_diag.h
@@ -1,6 +1,8 @@
 #ifndef _INET_DIAG_H_
 #define _INET_DIAG_H_ 1
 
+#include <linux/types.h>
+
 /* Just some random number */
 #define TCPDIAG_GETSOCK 18
 #define DCCPDIAG_GETSOCK 19