diff --git a/internal/ui/input_glfw.go b/internal/ui/input_glfw.go
index 245475fb3..7c5b44f44 100644
--- a/internal/ui/input_glfw.go
+++ b/internal/ui/input_glfw.go
@@ -150,8 +150,8 @@ func (i *Input) Wheel() (xoff, yoff float64) {
 
 var glfwMouseButtonToMouseButton = map[glfw.MouseButton]MouseButton{
 	glfw.MouseButtonLeft:   MouseButton0,
-	glfw.MouseButtonRight:  MouseButton1,
-	glfw.MouseButtonMiddle: MouseButton2,
+	glfw.MouseButtonMiddle: MouseButton1,
+	glfw.MouseButtonRight:  MouseButton2,
 	glfw.MouseButton3:      MouseButton3,
 	glfw.MouseButton4:      MouseButton4,
 }
diff --git a/internal/ui/input_js.go b/internal/ui/input_js.go
index 7b5931dfc..adc1c6357 100644
--- a/internal/ui/input_js.go
+++ b/internal/ui/input_js.go
@@ -127,8 +127,8 @@ func (i *Input) IsKeyPressed(key Key) bool {
 
 var codeToMouseButton = map[int]MouseButton{
 	0: MouseButton0, // Left
-	1: MouseButton2, // Middle
-	2: MouseButton1, // Right
+	1: MouseButton1, // Middle
+	2: MouseButton2, // Right
 	3: MouseButton3,
 	4: MouseButton4,
 }
diff --git a/mousebuttons.go b/mousebuttons.go
index 6203b3d61..48a6f0bf0 100644
--- a/mousebuttons.go
+++ b/mousebuttons.go
@@ -24,8 +24,8 @@ type MouseButton = ui.MouseButton
 // MouseButtons
 const (
 	MouseButtonLeft   MouseButton = MouseButton0
-	MouseButtonRight  MouseButton = MouseButton1
-	MouseButtonMiddle MouseButton = MouseButton2
+	MouseButtonMiddle MouseButton = MouseButton1
+	MouseButtonRight  MouseButton = MouseButton2
 
 	MouseButton0   MouseButton = ui.MouseButton0
 	MouseButton1   MouseButton = ui.MouseButton1