diff --git a/internal/ui/init.go b/internal/ui/init.go
index 77c107f62..620c20356 100644
--- a/internal/ui/init.go
+++ b/internal/ui/init.go
@@ -22,7 +22,3 @@ func init() {
 	// TODO: Should graphics() be moved to the graphicscommand package?
 	graphicscommand.SetGraphicsDriver(graphics())
 }
-
-func NeedsInvertY() bool {
-	return graphicscommand.NeedsInvertY()
-}
diff --git a/shader.go b/shader.go
index c7574d58a..bc91cc846 100644
--- a/shader.go
+++ b/shader.go
@@ -22,11 +22,11 @@ import (
 	"strings"
 
 	"github.com/hajimehoshi/ebiten/v2/internal/graphics"
+	"github.com/hajimehoshi/ebiten/v2/internal/graphicscommand"
 	"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver"
 	"github.com/hajimehoshi/ebiten/v2/internal/mipmap"
 	"github.com/hajimehoshi/ebiten/v2/internal/shader"
 	"github.com/hajimehoshi/ebiten/v2/internal/shaderir"
-	"github.com/hajimehoshi/ebiten/v2/internal/ui"
 )
 
 var shaderSuffix string
@@ -126,7 +126,7 @@ func NewShader(src []byte) (*Shader, error) {
 	var buf bytes.Buffer
 	buf.Write(src)
 	buf.WriteString(shaderSuffix)
-	if ui.NeedsInvertY() {
+	if graphicscommand.NeedsInvertY() {
 		buf.WriteString(`
 func __vertex(position vec2, texCoord vec2, color vec4) (vec4, vec2, vec4) {
 	return mat4(