diff --git a/Classes/Decoder/UrlDecoder.php b/Classes/Decoder/UrlDecoder.php
index 47a7b206..488a776a 100644
--- a/Classes/Decoder/UrlDecoder.php
+++ b/Classes/Decoder/UrlDecoder.php
@@ -1193,6 +1193,8 @@ protected function makeRealPhpArrayFromRequestVars(array $requestVariables) {
 
 	/**
 	 * Merges $_GET from domains configuration.
+	 *
+	 * @return void
 	 */
 	protected function mergeGetVarsFromDomainsConfiguration() {
 		// Convert the configuration into an $_GET-"friendly" format