diff --git a/mandelmapper/render.go b/mandelmapper/render.go
index b59f7c9..13a0ada 100644
--- a/mandelmapper/render.go
+++ b/mandelmapper/render.go
@@ -19,8 +19,7 @@ import (
 
 const (
 	Size       = 256
-	Iterations = (1<<16 - 1) / Brighten
-	Brighten   = 1024
+	Iterations = (1<<16 - 1) / 256
 )
 
 var (
@@ -71,11 +70,11 @@ func main() {
 		go computeThread()
 	}
 
-	colorStep := float64(256)
+	colorStep := float64(Iterations)
 	colors = interpolateColors("Plan9", colorStep)
 	fmt.Println(len(colors))
 
-	log.Fatal(http.ListenAndServe(":80", nil))
+	log.Fatal(http.ListenAndServe(":6161", nil))
 }
 
 func renderTile(w http.ResponseWriter, r *http.Request) {