diff --git a/src/eth/tb/taxi_eth_mac_phy_1g_basex/test_taxi_eth_mac_phy_1g_basex.py b/src/eth/tb/taxi_eth_mac_phy_1g_basex/test_taxi_eth_mac_phy_1g_basex.py
index a642cb5..c1a9d90 100644
--- a/src/eth/tb/taxi_eth_mac_phy_1g_basex/test_taxi_eth_mac_phy_1g_basex.py
+++ b/src/eth/tb/taxi_eth_mac_phy_1g_basex/test_taxi_eth_mac_phy_1g_basex.py
@@ -644,12 +644,12 @@ async def run_test_pfc(dut, gbx_cfg=None, ifg=12):
     dut.rx_pfc_ack.value = 0xff
 
     for i in range(8):
-        for k in range(500):
+        for k in range(750):
             await RisingEdge(dut.tx_clk)
 
         dut.tx_pfc_req.value = 0xff >> (7-i)
 
-    for k in range(500):
+    for k in range(750):
         await RisingEdge(dut.tx_clk)
 
     dut.tx_pfc_req.value = 0x00