diff --git a/src/Composer/Package/Loader/ValidatingArrayLoader.php b/src/Composer/Package/Loader/ValidatingArrayLoader.php
index b2e0ad232..c275fc357 100644
--- a/src/Composer/Package/Loader/ValidatingArrayLoader.php
+++ b/src/Composer/Package/Loader/ValidatingArrayLoader.php
@@ -179,8 +179,8 @@ class ValidatingArrayLoader implements LoaderInterface
                 unset($this->config['support']['email']);
             }
 
-            if (isset($this->config['support']['irc']) && !$this->filterUrl($this->config['support']['irc'], array('irc'))) {
-                $this->warnings[] = 'support.irc : invalid value ('.$this->config['support']['irc'].'), must be a irc://<server>/<channel> URL';
+            if (isset($this->config['support']['irc']) && !$this->filterUrl($this->config['support']['irc'], array('irc', 'ircs'))) {
+                $this->warnings[] = 'support.irc : invalid value ('.$this->config['support']['irc'].'), must be a irc://<server>/<channel> or ircs:// URL';
                 unset($this->config['support']['irc']);
             }