diff --git a/app/models/user.rb b/app/models/user.rb
index afd45e08b..3d9e59f2e 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -42,12 +42,12 @@ class User < Principal
   # Different ways of displaying/sorting users
   USER_FORMATS = {
     :firstname_lastname => {
-        :string => '#{firstname} #{lastname}',
+        :string => '#{firstname}#{lastname}',
         :order => %w(firstname lastname id),
         :setting_order => 1
       },
     :firstname_lastinitial => {
-        :string => '#{firstname} #{lastname.to_s.chars.first}.',
+        :string => '#{firstname}#{lastname.to_s.chars.first}.',
         :order => %w(firstname lastname id),
         :setting_order => 2
       },
@@ -57,7 +57,7 @@ class User < Principal
         :setting_order => 3
       },
     :lastname_firstname => {
-        :string => '#{lastname} #{firstname}',
+        :string => '#{lastname}#{firstname}',
         :order => %w(lastname firstname id),
         :setting_order => 4
       },