diff --git a/pandora_console/include/class/WebServerModuleDebug.class.php b/pandora_console/include/class/WebServerModuleDebug.class.php
index f09d1f3a68..872582e6a3 100644
--- a/pandora_console/include/class/WebServerModuleDebug.class.php
+++ b/pandora_console/include/class/WebServerModuleDebug.class.php
@@ -265,7 +265,7 @@ class WebServerModuleDebug extends Wizard
             );
             // Set execution timeout.
             $executionForPerform .= sprintf(
-                $executionForPerform.' -m %d',
+                ' -m %d',
                 $this->requestTimeout
             );