diff --git a/block/qapi.c b/block/qapi.c
index 5f1a71f..7fa2437 100644
--- a/block/qapi.c
+++ b/block/qapi.c
@@ -66,10 +66,11 @@
 
     info->detect_zeroes = bs->detect_zeroes;
 
-    if (blk && blk_get_public(blk)->throttle_state) {
+    if (blk && blk_get_public(blk)->throttle_group_member.throttle_state) {
         ThrottleConfig cfg;
+        BlockBackendPublic *blkp = blk_get_public(blk);
 
-        throttle_group_get_config(blk, &cfg);
+        throttle_group_get_config(&blkp->throttle_group_member, &cfg);
 
         info->bps     = cfg.buckets[THROTTLE_BPS_TOTAL].avg;
         info->bps_rd  = cfg.buckets[THROTTLE_BPS_READ].avg;
@@ -117,7 +118,8 @@
         info->iops_size = cfg.op_size;
 
         info->has_group = true;
-        info->group = g_strdup(throttle_group_get_name(blk));
+        info->group =
+            g_strdup(throttle_group_get_name(&blkp->throttle_group_member));
     }
 
     info->write_threshold = bdrv_write_threshold_get(bs);