diff --git a/pwndbg/commands/heap.py b/pwndbg/commands/heap.py
index ae28b1485..a623d0e49 100755
--- a/pwndbg/commands/heap.py
+++ b/pwndbg/commands/heap.py
@@ -969,7 +969,7 @@ def try_free(addr):
                 print(message.notice('Clearing next chunk\'s P bit'))
 
             # unsorted bin fd->bk should be unsorted bean
-            unsorted_addr = int(arena['bins']) - 2*ptr_size
+            unsorted_addr = int(arena['bins'][0])
             try:
                 unsorted = read_chunk(unsorted_addr)
                 try: