diff --git a/litex_boards/platforms/radiona_ulx3s.py b/litex_boards/platforms/radiona_ulx3s.py
index 9f4f4ac..79155a6 100644
--- a/litex_boards/platforms/radiona_ulx3s.py
+++ b/litex_boards/platforms/radiona_ulx3s.py
@@ -16,13 +16,13 @@ _io_common = [
     ("rst",   0, Pins("R1"), IOStandard("LVCMOS33")),
 
     # Buttons
-    ("user_button", 0, Pins("D6"), IOStandard("LVCMOS33"), Misc("PULLMODE=UP")), # PWR
-    ("user_button", 1, Pins("R1"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # F1
-    ("user_button", 2, Pins("T1"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # F2
-    ("user_button", 3, Pins("R18"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # UP
-    ("user_button", 4, Pins("V1"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # DOWN
-    ("user_button", 5, Pins("U1"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # LEFT
-    ("user_button", 6, Pins("H16"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # RIGHT
+    ("user_btn", 0, Pins( "D6"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # PWR
+    ("user_btn", 1, Pins( "R1"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # F1
+    ("user_btn", 2, Pins( "T1"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # F2
+    ("user_btn", 3, Pins("R18"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # UP
+    ("user_btn", 4, Pins( "V1"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # DOWN
+    ("user_btn", 5, Pins( "U1"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # LEFT
+    ("user_btn", 6, Pins("H16"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # RIGHT
 
     # Leds
     ("user_led", 0, Pins("B2"), IOStandard("LVCMOS33")),