diff --git a/main/install/update-files-1.10.0-1.11.0.inc.php b/main/install/update-files-1.10.0-1.11.0.inc.php
index 170239b25c..dbd6535f62 100644
--- a/main/install/update-files-1.10.0-1.11.0.inc.php
+++ b/main/install/update-files-1.10.0-1.11.0.inc.php
@@ -33,10 +33,16 @@ if (defined('SYSTEM_INSTALLATION')) {
     if (is_dir($lpPath)) {
         @rrmdir($lpPath);
     }
+    // The ticket plugin has been moved to core in 1.11
     $ticketPluginPath = api_get_path(SYS_PLUGIN_PATH).'ticket';
     if (is_dir($ticketPluginPath)) {
         @rrmdir($ticketPluginPath);
     }
+    // The Skype plugin has been moved to core in 1.11
+    $skypePluginPath = api_get_path(SYS_PLUGIN_PATH).'skype';
+    if (is_dir($skypePluginPath)) {
+        @rrmdir($skypePluginPath);
+    }
 
     if ($debug) {
         error_log('Folders cleaned up');