diff --git a/config/environments/development.js b/config/environments/development.js
index cae6586e..0456e28a 100644
--- a/config/environments/development.js
+++ b/config/environments/development.js
@@ -9,6 +9,7 @@ var config = {
         user: "tileuser",
         host: '127.0.0.1',
         port: 5432,
+        extent: "-20005048.4188,-20005048.4188,20005048.4188,20005048.4188",
         /* experimental
         geometry_field: "the_geom",
         extent: "-180,-90,180,90",
diff --git a/config/environments/production.js b/config/environments/production.js
index 5d754aab..9df860c1 100644
--- a/config/environments/production.js
+++ b/config/environments/production.js
@@ -8,6 +8,7 @@ var config = {
         user: "tileuser",
         host: '127.0.0.1',
         port: 6432,
+        extent: "-20005048.4188,-20005048.4188,20005048.4188,20005048.4188",
         simplify: true
     }
     ,redis: {
@@ -26,4 +27,4 @@ var config = {
     }
 };
 
-module.exports = config;
\ No newline at end of file
+module.exports = config;
diff --git a/config/environments/test.js b/config/environments/test.js
index 1d16cdbf..c6dd517f 100644
--- a/config/environments/test.js
+++ b/config/environments/test.js
@@ -9,6 +9,7 @@ var config = {
         host: '127.0.0.1',
         port: 5432,
         srid: 4326,
+        extent: "-20005048.4188,-20005048.4188,20005048.4188,20005048.4188",
         max_size: 0,
         simplify: true
     }
@@ -30,4 +31,4 @@ var config = {
     }
 };
 
-module.exports = config;
\ No newline at end of file
+module.exports = config;