diff --git a/fs/dlm/debug_fs.c b/fs/dlm/debug_fs.c
index ca94a83..61ba670 100644
--- a/fs/dlm/debug_fs.c
+++ b/fs/dlm/debug_fs.c
@@ -287,7 +287,7 @@
 	return 0;
 }
 
-static struct file_operations rsb_fops = {
+static const struct file_operations rsb_fops = {
 	.owner   = THIS_MODULE,
 	.open    = rsb_open,
 	.read    = seq_read,
@@ -331,7 +331,7 @@
 	return rv;
 }
 
-static struct file_operations waiters_fops = {
+static const struct file_operations waiters_fops = {
 	.owner   = THIS_MODULE,
 	.open    = waiters_open,
 	.read    = waiters_read