diff --git a/server/plugins-available/firewall_plugin.inc.php b/server/plugins-available/firewall_plugin.inc.php
index 2cca769fd525bdced81f9a5698538eb0f375bab8..d3538cc010db958bc1c9b865f2171971921f3d3f 100644
--- a/server/plugins-available/firewall_plugin.inc.php
+++ b/server/plugins-available/firewall_plugin.inc.php
@@ -38,7 +38,7 @@ class firewall_plugin {
 	public function onInstall() {
 		global $conf;
 
-		if($conf['bastille']['installed'] = true && $conf['services']['firewall'] == true) {
+		if($conf['bastille']['installed'] == true && $conf['services']['firewall'] == true) {
 			return true;
 		} else {
 			return false;