diff --git a/litex/boards/platforms/kcu105.py b/litex/boards/platforms/kcu105.py
index 0c5660a06..d7fd08298 100644
--- a/litex/boards/platforms/kcu105.py
+++ b/litex/boards/platforms/kcu105.py
@@ -206,10 +206,10 @@ _connectors = [
         "HA18_N": "B16",
         "HA22_P": "C18",
         "HA22_N": "C17",
-        "GBTCLK1_M2C_P": "E25",
-        "GBTCLK1_M2C_N": "D25",
-        "GBTCLK0_M2C_P": "H12",
-        "GBTCLK0_M2C_N": "G12",
+        "GBTCLK1_M2C_P": "H6",
+        "GBTCLK1_M2C_N": "H5",
+        "GBTCLK0_M2C_P": "K6",
+        "GBTCLK0_M2C_N": "K5",
         "LA01_CC_P": "G9",
         "LA01_CC_N": "F9",
         "LA05_P": "L13",