diff --git a/reference/mysqli/mysqli/poll.xml b/reference/mysqli/mysqli/poll.xml
index bc139c8cf6..e20018794c 100644
--- a/reference/mysqli/mysqli/poll.xml
+++ b/reference/mysqli/mysqli/poll.xml
@@ -97,20 +97,20 @@ $link1->query("SELECT 'test'", MYSQLI_ASYNC);
 $all_links = array($link1);
 $processed = 0;
 do {
-	$links = $errors = $reject = array();
-	foreach ($all_links as $link) {
-		$links[] = $errors[] = $reject[] = $link;
-	}
-	if (!mysqli_poll($links, $errors, $reject, 1)) {
-		continue;
-	}
-	foreach ($links as $link) {
-		if ($result = $link->reap_async_query()) {
-			print_r($result->fetch_row());
-			mysqli_free_result($result);
-			$processed++;
-		}
-	}
+    $links = $errors = $reject = array();
+    foreach ($all_links as $link) {
+        $links[] = $errors[] = $reject[] = $link;
+    }
+    if (!mysqli_poll($links, $errors, $reject, 1)) {
+        continue;
+    }
+    foreach ($links as $link) {
+        if ($result = $link->reap_async_query()) {
+            print_r($result->fetch_row());
+            mysqli_free_result($result);
+            $processed++;
+        }
+    }
 } while ($processed < count($all_links));
 ?>
 ]]>