diff --git a/input.go b/input.go
index 2774ec15b..c4db0837a 100644
--- a/input.go
+++ b/input.go
@@ -52,8 +52,10 @@ func CursorPosition() (x, y int) {
 	return ui.AdjustedCursorPosition()
 }
 
-// MouseWheel returns the x and y offset of the mouse wheel or touchpad scroll.
+// Wheel returns the x and y offset of the mouse wheel or touchpad scroll.
 // It returns 0 if the wheel isn't being rolled.
+//
+// Wheel is concurrent-safe.
 func Wheel() (xoff, yoff float64) {
 	return input.Get().Wheel()
 }