diff --git a/drivers/md/dm-writecache.c b/drivers/md/dm-writecache.c
index b97c56109c74..a1d4166864d0 100644
--- a/drivers/md/dm-writecache.c
+++ b/drivers/md/dm-writecache.c
@@ -318,7 +318,7 @@ static int persistent_memory_claim(struct dm_writecache *wc)
 #else
 static int persistent_memory_claim(struct dm_writecache *wc)
 {
-	BUG();
+	return -EOPNOTSUPP;
 }
 #endif