diff --git a/src/main/js/modules/blocks.js b/src/main/js/modules/blocks.js
index 8b2f13bdc..c798c73b3 100644
--- a/src/main/js/modules/blocks.js
+++ b/src/main/js/modules/blocks.js
@@ -353,17 +353,25 @@ var blocks = {
     jungle: 190,
     darkoak: 191,
     acacia: 192
+  },
+  concrete: {
+    white: 251 // all other colors added below
+  },
+  concrete_powder: {
+    white: 252 // all other colors added below
   }
 };
 
 // Add all available colors to colorized block collections
 
 var colorized_blocks = [
-  'wool',
-  'stained_clay',
-  'carpet',
-  'stained_glass',
-  'stained_glass_pane'
+  'wool', 
+  'stained_clay', 
+  'carpet', 
+  'stained_glass', 
+  'stained_glass_pane',
+  'concrete',
+  'concrete_powder'
 ];
 
 for (var i = 0, len = colorized_blocks.length; i < len; i++) {