diff --git a/ofdgo_renderer.go b/ofdgo_renderer.go
index 94f062e..f8db016 100644
--- a/ofdgo_renderer.go
+++ b/ofdgo_renderer.go
@@ -664,7 +664,7 @@ func (r *Renderer) renderPath(ctx *canvas.Context, obj PathObject, pageH float64
 			strokePaint = strokeColor
 		}
 		if strokePaint == nil {
-			strokePaint = color.Transparent
+			strokePaint = colorWithAlpha(canvas.Black, obj.Alpha)
 		}
 		ctx.SetFillColor(canvas.Transparent)
 		ctx.SetStroke(strokePaint)