diff --git a/robotgo_win.go b/robotgo_win.go
index d2208bca..e99823c2 100644
--- a/robotgo_win.go
+++ b/robotgo_win.go
@@ -57,7 +57,7 @@ func SetForeg(hwnd win.HWND) bool {
 	return win.SetForegroundWindow(hwnd)
 }
 
-// GetMian get the main display hwnd
+// GetMain get the main display hwnd
 func GetMain() win.HWND {
 	return win.GetActiveWindow()
 }
diff --git a/robotgo_x11.go b/robotgo_x11.go
index 26355a18..97aa9151 100644
--- a/robotgo_x11.go
+++ b/robotgo_x11.go
@@ -190,7 +190,7 @@ func DisplaysNum() int {
 	return int(reply.Number)
 }
 
-// GetMianId get the main display id
+// GetMainId get the main display id
 func GetMainId() int {
 	conn, err := xgb.NewConn()
 	if err != nil {
diff --git a/screen.go b/screen.go
index e0eca41e..e6b7a16f 100644
--- a/screen.go
+++ b/screen.go
@@ -16,13 +16,13 @@ import (
 	"github.com/kbinani/screenshot"
 )
 
-// GetScreenBound gets the display screen bounds
+// GetDisplayBounds gets the display screen bounds
 func GetDisplayBounds(i int) (x, y, w, h int) {
 	bs := screenshot.GetDisplayBounds(i)
 	return bs.Min.X, bs.Min.Y, bs.Dx(), bs.Dy()
 }
 
-// GetDisplayBounds gets the display rect
+// GetDisplayRect gets the display rect
 func GetDisplayRect(i int) Rect {
 	x, y, w, h := GetDisplayBounds(i)
 	return Rect{