diff --git a/vips/image.go b/vips/image.go
index f36f2f1c..6efec45a 100644
--- a/vips/image.go
+++ b/vips/image.go
@@ -268,7 +268,7 @@ type PngExportParams struct {
 	Palette       bool
 	Dither        float64
 	Bitdepth      int
-	Profile       string // TODO: Use this param during save
+	Profile       string
 }
 
 // NewPngExportParams creates default values for an export of a PNG image.
diff --git a/vips/math.go b/vips/math.go
index c7176f1f..b4e1bff3 100644
--- a/vips/math.go
+++ b/vips/math.go
@@ -13,7 +13,7 @@ func ValueOf(value float64) Scalar {
 	return Scalar{value, false}
 }
 
-// IsZero checkes whether the associated Scalar's value is zero.
+// IsZero checks whether the associated Scalar's value is zero.
 func (s *Scalar) IsZero() bool {
 	return s.Value == 0 && !s.Relative
 }