diff --git a/fs/pstore/inode.c b/fs/pstore/inode.c
index aeb19e6..11a2aa2 100644
--- a/fs/pstore/inode.c
+++ b/fs/pstore/inode.c
@@ -258,7 +258,7 @@
 	return rc;
 }
 
-int pstore_fill_super(struct super_block *sb, void *data, int silent)
+static int pstore_fill_super(struct super_block *sb, void *data, int silent)
 {
 	struct inode *inode;