diff --git a/plugin/ims_lti/form.php b/plugin/ims_lti/form.php
index f291418d0e..ef26dba534 100644
--- a/plugin/ims_lti/form.php
+++ b/plugin/ims_lti/form.php
@@ -79,22 +79,22 @@ $result = $oauth->sign(array(
 ?>
 <!DOCTYPE html>
 <html>
-    <head>
-        <title>title</title>
-    </head>
-    <body>
-        <form action="<?php echo $tool->getLaunchUrl() ?>" name="ltiLaunchForm" method="post" encType="application/x-www-form-urlencoded">
-        <?php
-        foreach($result["parameters"] as $key => $values) //Dump parameters
-        {
-                echo("<input type='hidden' name='$key' value='$values' />");
-        }
+<head>
+    <title>title</title>
+</head>
+<body>
+<form action="<?php echo $tool->getLaunchUrl() ?>" name="ltiLaunchForm" method="post"
+      encType="application/x-www-form-urlencoded">
+    <?php
+    foreach ($result["parameters"] as $key => $values) { //Dump parameters
+        echo '<input type="hidden" name="'.$key.'" value="'.$values.'" />';
+    }
     ?>
-			<input type="submit" value="Press to continue to external tool"/>
-        </form>
+    <input type="submit" value="Press to continue to external tool"/>
+</form>
 
-        <script language="javascript">
-            document.ltiLaunchForm.submit();
-        </script>
-    </body>
+<script language="javascript">
+    document.ltiLaunchForm.submit();
+</script>
+</body>
 </html>
