diff --git a/lib/colors.js b/lib/colors.js
index 74272ba8..7ca90fa9 100644
--- a/lib/colors.js
+++ b/lib/colors.js
@@ -185,10 +185,10 @@ colors.zalgo = require('./custom/zalgo');
 
 // maps
 colors.maps = {};
-colors.maps.america = require('./maps/america');
-colors.maps.zebra = require('./maps/zebra');
-colors.maps.rainbow = require('./maps/rainbow');
-colors.maps.random = require('./maps/random');
+colors.maps.america = require('./maps/america')(colors);
+colors.maps.zebra = require('./maps/zebra')(colors);
+colors.maps.rainbow = require('./maps/rainbow')(colors);
+colors.maps.random = require('./maps/random')(colors);
 
 for (var map in colors.maps) {
   (function(map) {
diff --git a/lib/maps/america.js b/lib/maps/america.js
index 86700529..dc969033 100644
--- a/lib/maps/america.js
+++ b/lib/maps/america.js
@@ -1,6 +1,4 @@
-var colors = require('../colors');
-
-module['exports'] = (function() {
+module['exports'] = function(colors) {
   return function(letter, i, exploded) {
     if (letter === ' ') return letter;
     switch (i%3) {
@@ -9,4 +7,4 @@ module['exports'] = (function() {
       case 2: return colors.blue(letter);
     }
   };
-})();
+};
diff --git a/lib/maps/rainbow.js b/lib/maps/rainbow.js
index 4e7ef006..2b00ac0a 100644
--- a/lib/maps/rainbow.js
+++ b/lib/maps/rainbow.js
@@ -1,6 +1,4 @@
-var colors = require('../colors');
-
-module['exports'] = (function() {
+module['exports'] = function(colors) {
   // RoY G BiV
   var rainbowColors = ['red', 'yellow', 'green', 'blue', 'magenta'];
   return function(letter, i, exploded) {
@@ -10,5 +8,5 @@ module['exports'] = (function() {
       return colors[rainbowColors[i++ % rainbowColors.length]](letter);
     }
   };
-})();
+};
 
diff --git a/lib/maps/random.js b/lib/maps/random.js
index 88219daf..cf93df2a 100644
--- a/lib/maps/random.js
+++ b/lib/maps/random.js
@@ -1,6 +1,4 @@
-var colors = require('../colors');
-
-module['exports'] = (function() {
+module['exports'] = function(colors) {
   var available = ['underline', 'inverse', 'grey', 'yellow', 'red', 'green',
     'blue', 'white', 'cyan', 'magenta'];
   return function(letter, i, exploded) {
@@ -9,4 +7,4 @@ module['exports'] = (function() {
         available[Math.round(Math.random() * (available.length - 2))]
       ](letter);
   };
-})();
+};
diff --git a/lib/maps/zebra.js b/lib/maps/zebra.js
index 28938c02..fa736235 100644
--- a/lib/maps/zebra.js
+++ b/lib/maps/zebra.js
@@ -1,5 +1,5 @@
-var colors = require('../colors');
-
-module['exports'] = function(letter, i, exploded) {
-  return i % 2 === 0 ? letter : colors.inverse(letter);
+module['exports'] = function(colors) {
+  return function(letter, i, exploded) {
+    return i % 2 === 0 ? letter : colors.inverse(letter);
+  };
 };