diff --git a/bin/quickstart.sh b/bin/quickstart.sh
--- a/bin/quickstart.sh
+++ b/bin/quickstart.sh
@@ -31,6 +31,10 @@
     test ! -z "$(php --ini | grep mysql)" || \
     die "Is php-mysqlnd installed?"
 
+pecl info swoole >/dev/null 2>&1 || \
+    test ! -z "$(php --modules | grep swoole)" || \
+    die "Is swoole installed? ('pecl install swoole', then load from php.ini)"
+
 base_dir=$(dirname $(dirname $0))
 
 docker pull docker.io/kolab/centos7:latest