diff --git a/app/metal_darwin.go b/app/metal_darwin.go
index 012bd2fc..06b89f3b 100644
--- a/app/metal_darwin.go
+++ b/app/metal_darwin.go
@@ -7,7 +7,6 @@ package app
 
 import (
 	"errors"
-	"unsafe"
 
 	"gioui.org/gpu"
 )
@@ -123,14 +122,14 @@ func (c *mtlContext) RenderTarget() (gpu.RenderTarget, error) {
 		return nil, errors.New("metal: CADrawable.texture is nil")
 	}
 	return gpu.MetalRenderTarget{
-		Texture: unsafe.Pointer(c.texture),
+		Texture: uintptr(c.texture),
 	}, nil
 }
 
 func (c *mtlContext) API() gpu.API {
 	return gpu.Metal{
-		Device:      unsafe.Pointer(c.dev),
-		Queue:       unsafe.Pointer(c.queue),
+		Device:      uintptr(c.dev),
+		Queue:       uintptr(c.queue),
 		PixelFormat: int(C.MTLPixelFormatBGRA8Unorm_sRGB),
 	}
 }
diff --git a/gpu/headless/headless_darwin.go b/gpu/headless/headless_darwin.go
index 9a61f95f..6be7fddc 100644
--- a/gpu/headless/headless_darwin.go
+++ b/gpu/headless/headless_darwin.go
@@ -4,7 +4,6 @@ package headless
 
 import (
 	"errors"
-	"unsafe"
 
 	"gioui.org/gpu"
 	_ "gioui.org/internal/cocoainit"
@@ -54,8 +53,8 @@ func init() {
 
 func (c *mtlContext) API() gpu.API {
 	return gpu.Metal{
-		Device:      unsafe.Pointer(c.dev),
-		Queue:       unsafe.Pointer(c.queue),
+		Device:      uintptr(c.dev),
+		Queue:       uintptr(c.queue),
 		PixelFormat: int(C.MTLPixelFormatRGBA8Unorm_sRGB),
 	}
 }
diff --git a/gpu/internal/driver/api.go b/gpu/internal/driver/api.go
index a0297430..12b4e1a9 100644
--- a/gpu/internal/driver/api.go
+++ b/gpu/internal/driver/api.go
@@ -28,7 +28,7 @@ type Direct3D11RenderTarget struct {
 
 type MetalRenderTarget struct {
 	// Texture is a MTLTexture.
-	Texture unsafe.Pointer
+	Texture uintptr
 }
 
 type VulkanRenderTarget struct {
@@ -59,9 +59,9 @@ type Direct3D11 struct {
 
 type Metal struct {
 	// Device is an MTLDevice.
-	Device unsafe.Pointer
+	Device uintptr
 	// Queue is a MTLCommandQueue.
-	Queue unsafe.Pointer
+	Queue uintptr
 	// PixelFormat is the MTLPixelFormat of the default framebuffer.
 	PixelFormat int
 }