diff --git a/gpu/gpu.go b/gpu/gpu.go
index f63422aa..41604fa0 100644
--- a/gpu/gpu.go
+++ b/gpu/gpu.go
@@ -30,8 +30,8 @@ import (
 	"gioui.org/op/clip"
 
 	// Register backends.
-	_ "gioui.org/gpu/gl"
 	_ "gioui.org/gpu/internal/d3d11"
+	_ "gioui.org/gpu/internal/opengl"
 )
 
 type GPU interface {
diff --git a/gpu/gl/backend.go b/gpu/internal/opengl/backend.go
similarity index 100%
rename from gpu/gl/backend.go
rename to gpu/internal/opengl/backend.go