diff --git a/litex_boards/official/targets/nexys4ddr.py b/litex_boards/official/targets/nexys4ddr.py
index 14a469a..3796bb4 100755
--- a/litex_boards/official/targets/nexys4ddr.py
+++ b/litex_boards/official/targets/nexys4ddr.py
@@ -79,7 +79,7 @@ class EthernetSoC(BaseSoC):
 
         # Ethernet ---------------------------------------------------------------------------------
         # phy
-        self.submodules.ethphy = LiteEthPHYMII(
+        self.submodules.ethphy = LiteEthPHYRMII(
             clock_pads = self.platform.request("eth_clocks"),
             pads       = self.platform.request("eth"))
         self.add_csr("ethphy")