diff --git a/internal/atlas/image.go b/internal/atlas/image.go
index d8be19e0e..650d2d228 100644
--- a/internal/atlas/image.go
+++ b/internal/atlas/image.go
@@ -156,6 +156,7 @@ const (
 	// A screen image is also unmanaged.
 	ImageTypeScreen
 
+	// ImageTypeVolatile is a volatile image that is cleared every frame.
 	ImageTypeVolatile
 
 	// ImageTypeUnmanaged is an unmanaged image that is not on an atlas.
diff --git a/internal/graphicscommand/shader.go b/internal/graphicscommand/shader.go
index d55c82eb2..40f2f2f05 100644
--- a/internal/graphicscommand/shader.go
+++ b/internal/graphicscommand/shader.go
@@ -31,7 +31,9 @@ type Shader struct {
 	shader graphicsdriver.Shader
 	ir     *shaderir.Program
 	id     int
-	name   string
+
+	// name is used only for logging.
+	name string
 }
 
 func NewShader(ir *shaderir.Program, name string) *Shader {