diff --git a/bin/noblogs.in b/bin/noblogs.in
index a222008236f8b53950cfd55407098e6ca742a368..5ea6b39a39c91b86bb2ef857774cf3821b573f0d 100755
--- a/bin/noblogs.in
+++ b/bin/noblogs.in
@@ -21,6 +21,9 @@ Known commands:
    set-option OPTION_NAME OPTION_VALUE BLOG [...]
       Set the value of an option for the specified blogs.
 
+   set-theme THEME_NAME BLOG [...]
+      Set the theme for the specified blogs.
+
    print-all-blogs
       Print a list of all existing blog IDs.
 
@@ -68,23 +71,23 @@ Known commands:
       Set read-only mode for the local noblogs installation. The argument
       must be either the literal 'on' or 'off'.
 
-  ngg-convert BLOG
+   ngg-convert BLOG
       Convert Next Gen Gallery (NGG) photo galleries to stardard Wordpress
       galleries, and then notify (via email) admins of the fact.
 
-  https-siteurl BLOG
+   https-siteurl BLOG
       Adds https (instead of http) to siteurl and home options.
 
-  fix-cdn BLOG
+   fix-cdn BLOG
       Sets the correct CDN config.
 
-  rename-plugins BLOG
+   rename-plugins BLOG
       Disables old plugins and enables new ones, when there has been a change in names.
 
-  uninstall-plugin PLUGIN BLOG
+   uninstall-plugin PLUGIN BLOG
       Runs unistall action for PLUGIN.
 
-  wp-piwik-clear-config BLOG
+   wp-piwik-clear-config BLOG
       Clear the configuration for wp-piwik plugin.
 
 <?php
@@ -189,6 +192,28 @@ function do_set_option($args) {
     }
 }
 
+// 'set-theme': Set the theme of a blog.
+function do_set_theme($args) {
+    $theme = array_shift($args);
+    if (!$theme) {
+        echo "Not enough arguments\n";
+        help();
+    }
+
+    foreach ($args as $arg) {
+        $blog = noblogs_get_blog($arg);
+        if (!$blog) {
+            echo "Blog {$arg} not found.\n";
+            continue;
+        }
+
+        switch_to_blog($blog->blog_id);
+        update_option('template', $theme);
+        update_option('stylesheet', $theme);
+        echo "{$arg}: {$theme}\n";
+        restore_current_blog();
+    }
+}
 
 // 'dump-shards': Print a JSON dictionary representing the full map
 // of backend -> blogs database mappings.