diff --git a/examples/embed_example.php b/examples/embed_example.php
index 3eaf176cc2c295ca05eb0d93993a344f7699149d..d9d1688442d60a56c8e97abcc496e7f2519ba024 100644
--- a/examples/embed_example.php
+++ b/examples/embed_example.php
@@ -1,16 +1,17 @@
 <?php
 
-$AMCLI=__DIR__.'/../built_packages/amcli';
-$INI=__DIR__.'/../src/simple.ini';
+$AMCLI = __DIR__ . '/../built_packages/amcli';
+$INI = __DIR__ . '/../src/simple.ini';
 
-$sCommand="$AMCLI --ini='$INI'";
-$aOut=[];
+$sCommand = "$AMCLI --ini='$INI'";
+$aOut = [];
 
 exec($sCommand, $aOut, $iRc);
 
-if($iRc==0){
+if ($iRc == 0) {
     header('Content-type: application/json');
-}else{
-    echo "Error: occured...\n";
+} else {
+    header("HTTP/1.1 503 Service unavailable");
+    echo "<h1>503 Service unavailable</h1>\n";
 }
 echo implode("\n", $aOut);