diff --git a/cmd/mtwebmapper/main.go b/cmd/mtwebmapper/main.go
index 50fe0fb..5b3b9b3 100644
--- a/cmd/mtwebmapper/main.go
+++ b/cmd/mtwebmapper/main.go
@@ -28,7 +28,7 @@ func blowUp(src image.Image) *image.RGBA {
 
 	dst := image.NewRGBA(image.Rect(0, 0, 256, 256))
 
-    // fix point numbers x:8
+	// fix point numbers x:8
 	dx, dy := src.Bounds().Dx(), src.Bounds().Dy()
 
 	bx, by := src.Bounds().Min.X<<8, src.Bounds().Min.Y<<8