diff --git a/mod/lti/templates/tool_configure.mustache b/mod/lti/templates/tool_configure.mustache
index 099e3c52dc7..1c659c3be38 100644
--- a/mod/lti/templates/tool_configure.mustache
+++ b/mod/lti/templates/tool_configure.mustache
@@ -44,7 +44,7 @@
         <div id="registration-choice-container" class="centered-menu">
             <div class="card card-block">
                 <p class="lead">{{#str}} autoaddtype, mod_lti {{/str}}</p>
-                <form class="form-inline" id="add-tool-form">
+                <form class="form-inline justify-content-center" id="add-tool-form">
                     <div class="control-group">
                         <input name="url"
                             class="form-control"