diff --git a/blockdev.c b/blockdev.c
index ea59c39c15b5fb94c27c9c7949a486072658d3e2..5651a8e140b9da2880261049dfbe692058ac43b5 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -1250,6 +1250,10 @@ static void internal_snapshot_prepare(BlkTransactionState *common,
         return;
     }
 
+    if (bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_INTERNAL_SNAPSHOT, errp)) {
+        return;
+    }
+
     if (bdrv_is_read_only(bs)) {
         error_set(errp, QERR_DEVICE_IS_READ_ONLY, device);
         return;