diff --git a/install-scripts/installer b/install-scripts/installer
index bff811a..0bdeb44 100644
--- a/install-scripts/installer
+++ b/install-scripts/installer
@@ -150,10 +150,13 @@ else
 fi;
 echo;
 
-# 5. configuration root dir
+# 5. 'httpd' is service name, but config dir is apache2
+http_root="/etc/$http_installer";
+test "$http_installer" = "httpd" && http_root="/etc/apache2";
+
+# 6. configuration root dir
 inline_progress "   . config root";
 
-http_root="/etc/$http_installer";
 if [ -d "$http_root" ]; then
 	echo "ok";
 else
@@ -162,7 +165,7 @@ else
 	exit 1;
 fi;
 
-# 6. configuration structure
+# 7. configuration structure
 inline_progress "   . config tree";
 
 if [ -d "$http_root/sites-available" -a -d "$http_root/sites-enabled" ]; then
@@ -281,7 +284,7 @@ inline_progress "   * $http_installer"; echo;
 
 # 1. Copy configuration
 echo -n "     - create proxy configuration  ";
-if [ "$http_installer" = "apache2" ]; then
+if [ "$http_installer" = "apache2" -o "$http_installer" = "httpd" ]; then
 	echo """<VirtualHost *:80>
 	ServerName $host
 	ServerAlias www.$host
@@ -302,6 +305,10 @@ elif [ "$http_installer" = "nginx" ]; then
 		proxy_pass http://127.0.0.1:$port;
 	}
 }""" | sudo tee $http_root/sites-available/$host.reverse-proxy > /dev/null;
+else
+	echo "error";
+	echo -e "\n\e[31m/!\\\\\e[0m  no installer matches '$http_installer'. aborting installation";
+	exit 1;
 fi;
 
 # manage error