diff --git a/crypto777/iguana_OS.c b/crypto777/iguana_OS.c
index 5d4c097ca..74566a50f 100755
--- a/crypto777/iguana_OS.c
+++ b/crypto777/iguana_OS.c
@@ -249,13 +249,15 @@ void *queue_dequeue(queue_t *queue,int32_t offsetflag)
 
 void *queue_delete(queue_t *queue,struct queueitem *copy,int32_t copysize,int32_t freeitem)
 {
+    struct allocitem *ptr;
     struct queueitem *item = 0;
     lock_queue(queue);
     if ( queue->list != 0 )
     {
         DL_FOREACH(queue->list,item)
         {
-            if ( item == copy || memcmp((void *)((long)item + sizeof(struct queueitem)),(void *)((long)item + sizeof(struct queueitem)),copysize) == 0 )
+            ptr = (void *)((long)item - sizeof(struct allocitem));
+            if ( item == copy || (ptr->allocsize == copysize && memcmp((void *)((long)item + sizeof(struct queueitem)),(void *)((long)item + sizeof(struct queueitem)),copysize) == 0) )
             {
                 DL_DELETE(queue->list,item);
                 portable_mutex_unlock(&queue->mutex);
diff --git a/iguana/main.c b/iguana/main.c
index 5f902ccfe..d7abb07bc 100644
--- a/iguana/main.c
+++ b/iguana/main.c
@@ -100,8 +100,8 @@ char *iguana_blockingjsonstr(struct supernet_info *myinfo,char *jsonstr,uint64_t
         usleep(100);
         if ( retjsonstr != 0 )
         {
-            //printf("blocking retjsonstr.(%s)\n",retjsonstr);
-            queue_delete(&finishedQ,&ptr->DL,allocsize,1);
+            printf("got blocking retjsonstr.(%s) delete allocsize.%d:%d\n",retjsonstr,allocsize,ptr->allocsize);
+            queue_delete(&finishedQ,&ptr->DL,ptr->allocsize,1);
             return(retjsonstr);
         }
         usleep(1000);