diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 94d613208c4f..5d9e2cc5c51e 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -397,7 +397,7 @@ enum {
 static match_table_t rbd_opts_tokens = {
 	/* int args above */
 	/* string args above */
-	{Opt_read_only, "mapping.read_only"},
+	{Opt_read_only, "read_only"},
 	{Opt_read_only, "ro"},		/* Alternate spelling */
 	{Opt_read_write, "read_write"},
 	{Opt_read_write, "rw"},		/* Alternate spelling */