diff --git a/features/site_title.feature b/features/site_title.feature
index 94c39b1ded6..58d29a5d94a 100644
--- a/features/site_title.feature
+++ b/features/site_title.feature
@@ -19,20 +19,29 @@ Feature: Site title
     Then I should see "Ruby on Rails: Welcome aboard"
 
   Scenario: Set the site title image
-	Given a configuration of:
-	"""
-	  ActiveAdmin.application.site_title_image = "http://railscasts.com/assets/episodes/stills/284-active-admin.png?1316476106"
-	"""
-	When I am on the dashboard
-	And I should not see the site title "My Great Site"
-	And I should see the site title image "http://railscasts.com/assets/episodes/stills/284-active-admin.png?1316476106"
+    Given a configuration of:
+    """
+      ActiveAdmin.application.site_title_image = "http://railscasts.com/assets/episodes/stills/284-active-admin.png?1316476106"
+    """
+    When I am on the dashboard
+    And I should not see the site title "My Great Site"
+    And I should see the site title image "http://railscasts.com/assets/episodes/stills/284-active-admin.png?1316476106"
 
   Scenario: Set the site title image with link
-	Given a configuration of:
-	"""
-	  ActiveAdmin.application.site_title_link = "http://www.google.com"
-	  ActiveAdmin.application.site_title_image = "http://railscasts.com/assets/episodes/stills/284-active-admin.png?1316476106"
-	"""
-	When I am on the dashboard
-	And I should see the site title image "http://railscasts.com/assets/episodes/stills/284-active-admin.png?1316476106"
-	And I should see the site title image linked to "http://www.google.com"
+    Given a configuration of:
+    """
+      ActiveAdmin.application.site_title_link = "http://www.google.com"
+      ActiveAdmin.application.site_title_image = "http://railscasts.com/assets/episodes/stills/284-active-admin.png?1316476106"
+    """
+    When I am on the dashboard
+    And I should see the site title image "http://railscasts.com/assets/episodes/stills/284-active-admin.png?1316476106"
+    And I should see the site title image linked to "http://www.google.com"
+
+  Scenario: Set the site title to a proc
+    Given a configuration of:
+    """
+      ActiveAdmin.application.site_title_image = nil # Configuration is not reset between scenarios
+      ActiveAdmin.application.site_title = proc { "Hello #{controller.current_admin_user.email}" }
+    """
+    When I am on the dashboard
+    And I should see the site title "Hello admin@example.com"
diff --git a/lib/active_admin/views/header_renderer.rb b/lib/active_admin/views/header_renderer.rb
index 68d748b8c42..7262a6b7633 100644
--- a/lib/active_admin/views/header_renderer.rb
+++ b/lib/active_admin/views/header_renderer.rb
@@ -13,7 +13,7 @@ def to_html
 
       # Renders the title/branding area for the site
       def title
-        content_tag('h1', link_to_site_title(title_image || title_text), :id => 'site_title')
+        content_tag('h1', link_to_site_title(title_image_tag || title_text), :id => 'site_title')
       end
 
       def link_to_site_title(title_tag)
@@ -26,17 +26,22 @@ def link_to_site_title(title_tag)
       
       # @return [String] An HTML img tag with site_title_image. Return nil when
       # site_title_image is blank.
-      def title_image
+      def title_image_tag
         if active_admin_namespace.site_title_image.present?
-          image_tag(active_admin_namespace.site_title_image, 
+          image_tag(title_image, 
                     :id => "site_title_image", 
                     :alt => active_admin_namespace.site_title)
         end
       end
-      
+
+      # @return [String] The title image url
+      def title_image
+        render_or_call_method_or_proc_on(self, active_admin_namespace.site_title_image)
+      end
+
       # @return [String] The site title
       def title_text
-        active_admin_namespace.site_title
+        render_or_call_method_or_proc_on(self, active_admin_namespace.site_title)
       end
 
       # Renders the global navigation returned by