diff --git a/Boosting-areas-on-Dynmap.md b/Boosting-areas-on-Dynmap.md
index faf8682..ab3dc0e 100644
--- a/Boosting-areas-on-Dynmap.md
+++ b/Boosting-areas-on-Dynmap.md
@@ -13,8 +13,8 @@ To add the marker do: `/dmarker addarea <Name> boost:true`
 Two opposing corners are enough for a rectangle, but for a polygon you will have to add each corner yourself.
 To boost a circular area, you can do `/dmarker addcircle <Markername> radius:<r> world:<world> x:<x> y:<y> z:<z> boost:true`
 
-After you verified the areas are the ones you want you can hide them by setting their fillcolor and color to transparent by using:
-`/dmarker updatearea markerId fillcolor:000000 color:000000`
+After you verified the areas are the ones you want you can hide them by setting their fillopacity and opacity to transparent by using:
+`/dmarker updatearea markerId fillopacity:0.0 opacity:0.0`
 
 The markerId is found by using `/dmarker listareas` and finding the relevant id.