diff --git a/fs/xfs/xfs_filestream.c b/fs/xfs/xfs_filestream.c
index 36d8f6a..eb03eab 100644
--- a/fs/xfs/xfs_filestream.c
+++ b/fs/xfs/xfs_filestream.c
@@ -348,7 +348,7 @@
 }
 
 /* xfs_fstrm_free_func(): callback for freeing cached stream items. */
-void
+STATIC void
 xfs_fstrm_free_func(
 	unsigned long	ino,
 	void		*data)