diff --git a/pixelgl/orphan.go b/pixelgl/orphan.go
index cd97c2811deec62d3c3217863d08136216516d69..b67f8fc2f9a7f584791becdfce998ec466c895d3 100644
--- a/pixelgl/orphan.go
+++ b/pixelgl/orphan.go
@@ -4,7 +4,7 @@ import "github.com/go-gl/gl/v3.3-core/gl"
 
 // This file defines functions that can operate without a parent Doer.
 
-// Clear clears the current context..
+// Clear clears the current OpenGL context.
 func Clear(r, g, b, a float32) {
 	DoNoBlock(func() {
 		gl.ClearColor(r, g, b, a)