diff --git a/HeatSink.scad b/HeatSink.scad
index 3371abff1d710f24bfcd843e0d2bd95a7dbca5bf..bed98308e1b865e9d9288a2acb8c105cd4fcc255 100644
--- a/HeatSink.scad
+++ b/HeatSink.scad
@@ -9,8 +9,8 @@ use <WebWeaver/scad/Piping.scad>;
 
 
 // Material definitions
-GreenPLA = [28/255, 1.0, 47/255, 132/255];
-BlackAluminium = [16/255, 16/255, 16/255];
+module GreenPLA() { color([28/255, 1.0, 47/255, 132/255]) children(); }
+module BlackAluminium() { color([16/255, 16/255, 16/255]) children(); }
 
 
 
@@ -58,7 +58,7 @@ module symmetricHeatsink(
     for (y=[0:fin_cnt/2 - 1]) translate([0, y * (  fin_w0 + fin_spacing), baseplate]) fin();
   }
   
-  color(BlackAluminium) translate([-l/2, -w/2, 0]) {
+  BlackAluminium() translate([-l/2, -w/2, 0]) {
     half();
     translate([0, w, 0]) mirror([0, 1, 0]) half();
   }
@@ -240,9 +240,9 @@ module funnel() {
       translate([-hs_l/2, 0, 0]) cube([hs_l, hs_w/2, hs_w]);
     }
   }
-    
-  color(GreenPLA) {
-    
+
+
+  GreenPLA() {
     half();
     mirror([0, 1, 0]) half();
   }