diff --git a/src/Appwrite/Platform/Installer/HttpHandler.php b/src/Appwrite/Platform/Installer/HttpHandler.php
index bad75911f5..86ecad2bd1 100644
--- a/src/Appwrite/Platform/Installer/HttpHandler.php
+++ b/src/Appwrite/Platform/Installer/HttpHandler.php
@@ -222,8 +222,7 @@ class HttpHandler
         if (function_exists('posix_getpid')) {
             $pid = posix_getpid();
             if ($pid) {
-                $delay = 5;
-                $command = 'sh -c ' . escapeshellarg("sleep {$delay}; kill {$pid} >/dev/null 2>&1");
+                $command = 'sh -c ' . escapeshellarg("sleep 5; kill $pid >/dev/null 2>&1");
                 @exec($command . ' >/dev/null 2>&1 &');
             }
         }
diff --git a/src/Appwrite/Platform/Installer/Server.php b/src/Appwrite/Platform/Installer/Server.php
index 75b605d983..0a29a84ed0 100644
--- a/src/Appwrite/Platform/Installer/Server.php
+++ b/src/Appwrite/Platform/Installer/Server.php
@@ -228,9 +228,8 @@ class Server
 
     private function dockerImageExists(string $image): bool
     {
-        $name = escapeshellarg($image);
         $result = 1;
-        exec("docker image inspect $name >/dev/null 2>&1", $output, $result);
+        exec("docker image inspect " . escapeshellarg($image) . " >/dev/null 2>&1", $output, $result);
         return $result === 0;
     }
 
@@ -304,8 +303,7 @@ class Server
         $args[] = '--entrypoint=' . $entrypoint;
         $args[] = $image;
 
-        $escaped = array_map(escapeshellarg(...), $args);
-        $command = implode(' ', $escaped);
+        $command = implode(' ', array_map(escapeshellarg(...), $args));
         passthru($command, $status);
         exit($status);
     }
diff --git a/src/Appwrite/Platform/Tasks/Install.php b/src/Appwrite/Platform/Tasks/Install.php
index ca612913fb..163869ea6c 100644
--- a/src/Appwrite/Platform/Tasks/Install.php
+++ b/src/Appwrite/Platform/Tasks/Install.php
@@ -782,8 +782,7 @@ class Install extends Action
         $command[] = '-d';
         $command[] = '--remove-orphans';
         $command[] = '--renew-anon-volumes';
-        $escaped = array_map(escapeshellarg(...), $command);
-        $commandLine = $env . implode(' ', $escaped) . ' 2>&1';
+        $commandLine = $env . implode(' ', array_map(escapeshellarg(...), $command)) . ' 2>&1';
         \exec($commandLine, $output, $exit);
 
         if ($exit !== 0) {