diff --git a/liteeth/phy/a7_1000basex.py b/liteeth/phy/a7_1000basex.py
index c3d2693..23af274 100644
--- a/liteeth/phy/a7_1000basex.py
+++ b/liteeth/phy/a7_1000basex.py
@@ -716,9 +716,15 @@ class A7_1000BASEX(LiteXModule):
 
         # Get 125MHz clocks back - the GTP is outputting 62.5MHz.
         txoutclk_rebuffer = Signal()
-        self.specials += Instance("BUFH", i_I=self.txoutclk, o_O=txoutclk_rebuffer)
+        self.specials += Instance("BUFH",
+            i_I = self.txoutclk,
+            o_O = txoutclk_rebuffer
+        )
         rxoutclk_rebuffer = Signal()
-        self.specials += Instance("BUFG", i_I=self.rxoutclk, o_O=rxoutclk_rebuffer)
+        self.specials += Instance("BUFG",
+            i_I = self.rxoutclk,
+            o_O = rxoutclk_rebuffer
+        )
 
         # TX MMCM.
         self.tx_mmcm = tx_mmcm = S7MMCM()