diff --git a/config/environments/development.rb b/config/environments/development.rb
index 143e5992ebd..8ed39bf6de5 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -47,7 +47,7 @@ Discourse::Application.configure do
   require 'rbtrace'
 
   if emails = GlobalSetting.developer_emails
-    config.developer_emails = emails.split(",")
+    config.developer_emails = emails.split(",").map(&:strip!)
   end
 end
 
diff --git a/config/environments/production.rb b/config/environments/production.rb
index e92ffa87a8f..3a8b992a8ee 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -61,7 +61,7 @@ Discourse::Application.configure do
   # developers have god like rights and may impersonate anyone in the system
   # normal admins may only impersonate other moderators (not admins)
   if emails = GlobalSetting.developer_emails
-    config.developer_emails = emails.split(",")
+    config.developer_emails = emails.split(",").map(&:strip!)
   end
 
 end