diff --git a/gamepad.go b/gamepad.go
index c351b6785..bf29b6a75 100644
--- a/gamepad.go
+++ b/gamepad.go
@@ -23,20 +23,20 @@ type GamepadButton int
 
 // GamepadButtons
 const (
-	GamepadButton0  GamepadButton = GamepadButton(ui.GamepadButton0)
-	GamepadButton1                = GamepadButton(ui.GamepadButton1)
-	GamepadButton2                = GamepadButton(ui.GamepadButton2)
-	GamepadButton3                = GamepadButton(ui.GamepadButton3)
-	GamepadButton4                = GamepadButton(ui.GamepadButton4)
-	GamepadButton5                = GamepadButton(ui.GamepadButton5)
-	GamepadButton6                = GamepadButton(ui.GamepadButton6)
-	GamepadButton7                = GamepadButton(ui.GamepadButton7)
-	GamepadButton8                = GamepadButton(ui.GamepadButton8)
-	GamepadButton9                = GamepadButton(ui.GamepadButton9)
-	GamepadButton10               = GamepadButton(ui.GamepadButton10)
-	GamepadButton11               = GamepadButton(ui.GamepadButton11)
-	GamepadButton12               = GamepadButton(ui.GamepadButton12)
-	GamepadButton13               = GamepadButton(ui.GamepadButton13)
-	GamepadButton14               = GamepadButton(ui.GamepadButton14)
-	GamepadButton15               = GamepadButton(ui.GamepadButton15)
+	GamepadButton0  = GamepadButton(ui.GamepadButton0)
+	GamepadButton1  = GamepadButton(ui.GamepadButton1)
+	GamepadButton2  = GamepadButton(ui.GamepadButton2)
+	GamepadButton3  = GamepadButton(ui.GamepadButton3)
+	GamepadButton4  = GamepadButton(ui.GamepadButton4)
+	GamepadButton5  = GamepadButton(ui.GamepadButton5)
+	GamepadButton6  = GamepadButton(ui.GamepadButton6)
+	GamepadButton7  = GamepadButton(ui.GamepadButton7)
+	GamepadButton8  = GamepadButton(ui.GamepadButton8)
+	GamepadButton9  = GamepadButton(ui.GamepadButton9)
+	GamepadButton10 = GamepadButton(ui.GamepadButton10)
+	GamepadButton11 = GamepadButton(ui.GamepadButton11)
+	GamepadButton12 = GamepadButton(ui.GamepadButton12)
+	GamepadButton13 = GamepadButton(ui.GamepadButton13)
+	GamepadButton14 = GamepadButton(ui.GamepadButton14)
+	GamepadButton15 = GamepadButton(ui.GamepadButton15)
 )