diff --git a/include/linux/inet_diag.h b/include/linux/inet_diag.h
index 78972a149dff1224438d5065185317f29e3bf23f..a27e62178d43f4b6370c8943bd58ab4e12921cb3 100644
--- a/include/linux/inet_diag.h
+++ b/include/linux/inet_diag.h
@@ -6,7 +6,6 @@
 /* Just some random number */
 #define TCPDIAG_GETSOCK 18
 #define DCCPDIAG_GETSOCK 19
-#define SOCK_DIAG_BY_FAMILY 20
 
 #define INET_DIAG_GETSOCK_MAX 24
 
diff --git a/include/linux/sock_diag.h b/include/linux/sock_diag.h
index ba4933b1213b18552dd8e894f5744f51da9a8724..7999778ad08d53f0f3328ada734a91075a7f6ec7 100644
--- a/include/linux/sock_diag.h
+++ b/include/linux/sock_diag.h
@@ -1,5 +1,8 @@
 #ifndef __SOCK_DIAG_H__
 #define __SOCK_DIAG_H__
+
+#define SOCK_DIAG_BY_FAMILY 20
+
 struct sk_buff;
 struct nlmsghdr;