diff --git a/include/linux/filter.h b/include/linux/filter.h
index aaa2e80630b..f2e53152e83 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -10,6 +10,7 @@
 
 #ifdef __KERNEL__
 #include <linux/atomic.h>
+#include <linux/compat.h>
 #endif
 
 /*
@@ -132,6 +133,16 @@ struct sock_fprog {	/* Required for SO_ATTACH_FILTER. */
 
 #ifdef __KERNEL__
 
+#ifdef CONFIG_COMPAT
+/*
+ * A struct sock_filter is architecture independent.
+ */
+struct compat_sock_fprog {
+	u16		len;
+	compat_uptr_t	filter;		/* struct sock_filter * */
+};
+#endif
+
 struct sk_buff;
 struct sock;
 
diff --git a/net/compat.c b/net/compat.c
index 5b175093091..618ad245fc5 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -339,14 +339,6 @@ void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm)
 	__scm_destroy(scm);
 }
 
-/*
- * A struct sock_filter is architecture independent.
- */
-struct compat_sock_fprog {
-	u16		len;
-	compat_uptr_t	filter;		/* struct sock_filter * */
-};
-
 static int do_set_attach_filter(struct socket *sock, int level, int optname,
 				char __user *optval, unsigned int optlen)
 {