diff --git a/javascript_libraries.drush.inc b/javascript_libraries.drush.inc
index 0ef8ae7..939980a 100644
--- a/javascript_libraries.drush.inc
+++ b/javascript_libraries.drush.inc
@@ -55,6 +55,7 @@ function drush_javascript_libraries_jslib_switch_url($current_url = NULL, $new_u
   // Only save the variable if it changed.
   if ($changed) {
     drush_op('variable_set', 'javascript_libraries_custom_libraries', $libraries);
+    javascript_libraries_flush_caches();
     drush_log(dt('External library URL was updated from @old to @new.', array('@old' => $current_url, '@new' => $new_url)), 'success');
   }
   else {