diff --git a/console.php b/console.php
index 72f961515d7..fc571b03f1e 100644
--- a/console.php
+++ b/console.php
@@ -79,6 +79,10 @@ try {
 		exit(1);
 	}
 
+	if (!function_exists('pcntl_signal') && !in_array('--no-warnings', $argv)) {
+		echo "The process control (PCNTL) extensions are required in case you want to interrupt long running commands - see http://php.net/manual/en/book.pcntl.php" . PHP_EOL;
+	}
+
 	$application = new Application(\OC::$server->getConfig(), \OC::$server->getEventDispatcher(), \OC::$server->getRequest());
 	$application->loadCommands(new ArgvInput(), new ConsoleOutput());
 	$application->run();