diff --git a/config.php.sample b/config.php.sample
index 41b09247..a90981a3 100755
--- a/config.php.sample
+++ b/config.php.sample
@@ -5,4 +5,4 @@ define('PSM_DB_PASS', 'db_pass');
 define('PSM_DB_NAME', 'db_name');
 define('PSM_DB_HOST', 'localhost');
 define('PSM_DB_PORT', '3306');
-
+define('PSM_BASE_URL', '');
diff --git a/src/psm/Module/Install/Controller/InstallController.php b/src/psm/Module/Install/Controller/InstallController.php
index 75a7e94a..cae533f8 100644
--- a/src/psm/Module/Install/Controller/InstallController.php
+++ b/src/psm/Module/Install/Controller/InstallController.php
@@ -120,12 +120,13 @@ class InstallController extends AbstractController {
 			}
 
 			$config = array(
-				'host' => 'localhost',
-				'port' => '3306',
-				'name' => '',
-				'user' => '',
-				'pass' => '',
-				'prefix' => 'psm_',
+				'db_host' => 'localhost',
+        'db_port' => '3306'
+				'db_name' => '',
+				'db_user' => '',
+				'db_pass' => '',
+				'db_prefix' => 'psm_',
+				'base_url' => '',
 			);
 
 			$changed = false;
@@ -141,11 +142,11 @@ class InstallController extends AbstractController {
 			if($changed) {
 				// test db connection
 				$this->db = new \psm\Service\Database(
-					$config['host'],
-					$config['user'],
-					$config['pass'],
-					$config['name'],
-					$config['port']
+					$config['db_host'],
+          $config['db_port'],
+					$config['db_user'],
+					$config['db_pass'],
+					$config['db_name']
 				);
 
 				if($this->db->status()) {
@@ -277,11 +278,11 @@ class InstallController extends AbstractController {
 	 * @param array $db_vars prefix,user,pass,name,host
 	 * @return boolean|string TRUE on success, string with config otherwise
 	 */
-	protected function writeConfigFile($db_vars) {
+	protected function writeConfigFile($array_config) {
 		$config = "<?php".PHP_EOL;
 
-		foreach($db_vars as $key => $value) {
-			$line = "define('PSM_DB_{key}', '{value}');".PHP_EOL;
+		foreach($array_config as $key => $value) {
+			$line = "define('PSM_{key}', '{value}');".PHP_EOL;
 			$line = str_replace(
 				array('{key}', '{value}'),
 				array(strtoupper($key), $value),
@@ -311,7 +312,7 @@ class InstallController extends AbstractController {
 			'host' => '',
 			'port' => '3306'
 		);
-		$pattern = "/define\('SM_DB_{key}', '(.*?)'/u";
+		$pattern = "/define\('SM_{key}', '(.*?)'/u";
 
 		foreach($vars as $key => $value) {
 			$pattern_key = str_replace('{key}', strtoupper($key), $pattern);
diff --git a/src/templates/default/module/install/config_new.tpl.html b/src/templates/default/module/install/config_new.tpl.html
index 4a07a4ce..200d45c3 100644
--- a/src/templates/default/module/install/config_new.tpl.html
+++ b/src/templates/default/module/install/config_new.tpl.html
@@ -10,11 +10,18 @@
    <div class="span6">
 	<form id="psm_config" class="form-horizontal" action="install.php?action=config" method="post">
 	  {{ macro.csrf_input() }}
+		<p>Please enter the application url:</p>
+		<div class="control-group">
+		<label class="control-label" for="base_url">Application base url</label>
+		<div class="controls">
+		  <input type="text" id="base_url" name="base_url" value="{{ base_url }}" />
+		</div>
+	  </div>
 	  <p>Please enter your database info:</p>
 	  <div class="control-group">
 		<label class="control-label" for="host">Database host</label>
 		<div class="controls">
-		  <input type="text" id="host" name="host" value="{{ host }}" />
+		  <input type="text" id="host" name="db_host" value="{{ db_host }}" />
 		</div>
 	  </div>
 	  <div class="control-group">
@@ -26,25 +33,25 @@
 	  <div class="control-group">
 		<label class="control-label" for="name">Database name</label>
 		<div class="controls">
-		  <input type="text" id="name" name="name" value="{{ name }}" placeholder="db name" />
+		  <input type="text" id="name" name="db_name" value="{{ db_name }}" placeholder="db name" />
 		</div>
 	  </div>
 	  <div class="control-group">
 		<label class="control-label" for="user">Database user</label>
 		<div class="controls">
-		  <input type="text" id="user" name="user" value="{{ user }}" placeholder="db user" />
+		  <input type="text" id="user" name="db_user" value="{{ db_user }}" placeholder="db user" />
 		</div>
 	  </div>
 	  <div class="control-group">
 		<label class="control-label" for="pass">Database password</label>
 		<div class="controls">
-		  <input type="password" id="pass" name="pass" value="{{ pass }}" placeholder="db password" />
+		  <input type="password" id="pass" name="db_pass" value="{{ db_pass }}" placeholder="db password" />
 		</div>
 	  </div>
 	  <div class="control-group">
 		<label class="control-label" for="prefix">Table prefix</label>
 		<div class="controls">
-		  <input type="text" id="prefix" name="prefix" value="{{ prefix }}" />
+		  <input type="text" id="prefix" name="db_prefix" value="{{ db_prefix }}" />
 		</div>
 	  </div>
 	  <div class="control-group">