diff --git a/tb/pcie.py b/tb/pcie.py
index 657e807..3379069 100644
--- a/tb/pcie.py
+++ b/tb/pcie.py
@@ -1540,8 +1540,9 @@ class Function(PMCapability, PCIECapability):
 
         self.current_tag = 0
 
-        self.rx_cpl_queues = [[]]*256
-        self.rx_cpl_sync = [Signal(False)]*256
+        self.rx_cpl_queues = [[] for k in range(256)]
+        self.rx_cpl_sync = [Signal(False) for k in range(256)]
+
         self.rx_tlp_handler = {}
 
         self.capabilities = PcieCapList()