diff --git a/pdf2d/graphiccontext.go b/pdf2d/graphiccontext.go
index 03bd69c..70d4a88 100644
--- a/pdf2d/graphiccontext.go
+++ b/pdf2d/graphiccontext.go
@@ -14,8 +14,6 @@ import (
 	"github.com/stanim/gofpdf"
 )
 
-const c255 = 254.0 / 65535.0
-
 var (
 	caps = map[draw2d.Cap]string{
 		draw2d.RoundCap:  "round",
@@ -27,6 +25,8 @@ func notImplemented(method string) {
 	fmt.Printf("%s: not implemented\n", method)
 }
 
+const c255 = 255.0 / 65535.0
+
 func rgb(c color.Color) (int, int, int) {
 	r, g, b, _ := c.RGBA()
 	return int(float64(r) * c255), int(float64(g) * c255), int(float64(b) * c255)