diff --git a/nmigen/humpback.py b/nmigen/humpback.py
index ecd818d..99eaf41 100644
--- a/nmigen/humpback.py
+++ b/nmigen/humpback.py
@@ -297,13 +297,13 @@ class HumpbackPlatform(LatticeICE40Platform):
 
 	eem_to_urukul = [
 		Resource("eem", 1,
-			Subsignal("sclk", 		DiffPairs("L6", "L3", dir="o", conn=("eem", 1))),
-			Subsignal("mosi", 		DiffPairs("H6", "F1", dir="o", conn=("eem", 1))),
-			Subsignal("miso", 		DiffPairs("H4", "G2", dir="i", conn=("eem", 1)),
-									Attrs(IO_STANDARD="SB_LVDS_INPUT")),
-			Subsignal("cs", 		DiffPairs("J4 J2 K1", "H2 J1 K3", dir="o", conn=("eem", 1))),
-			Subsignal("io_update", 	DiffPairs("L4", "L1", dir="o", conn=("eem", 1))),
-			Subsignal("sync_out", 	DiffPairs("K4", "M1", dir="o", conn=("emm", 1))),
+			Subsignal("sclk", DiffPairs("L6", "L3", dir="o", conn=("eem", 1))),
+			Subsignal("mosi", DiffPairs("H6", "F1", dir="o", conn=("eem", 1))),
+			Subsignal("miso", DiffPairs("H4", "G2", dir="i", conn=("eem", 1)),
+				Attrs(IO_STANDARD="SB_LVDS_INPUT")),
+			Subsignal("cs", DiffPairs("J4 J2 K1", "H2 J1 K3", dir="o", conn=("eem", 1))),
+			Subsignal("io_update", DiffPairs("L4", "L1", dir="o", conn=("eem", 1))),
+			Subsignal("sync_out", DiffPairs("K4", "M1", dir="o", conn=("emm", 1))),
 			Attrs(IO_STANDARD="SB_LVCMOS")
 		)
 	]