diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index d43efdc..f779430 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -3356,7 +3356,7 @@
 	return should_wake;
 }
 
-int ocfs2_downconvert_thread(void *arg)
+static int ocfs2_downconvert_thread(void *arg)
 {
 	int status = 0;
 	struct ocfs2_super *osb = arg;