diff --git a/phpBB/docs/events.md b/phpBB/docs/events.md
index 65bb1cd84b..81a43b5664 100644
--- a/phpBB/docs/events.md
+++ b/phpBB/docs/events.md
@@ -1177,6 +1177,13 @@ quickreply_editor_message_before
 * Since: 3.1.0-a4
 * Purpose: Add content before the quick reply textbox
 
+quickreply_editor_subject_before
+===
+* Locations:
+    + styles/prosilver/template/quickreply_editor.html
+* Since: 3.1.7-RC1
+* Purpose: Add content before the quick reply subject textbox
+
 search_body_form_before
 ===
 * Locations:
diff --git a/phpBB/styles/prosilver/template/quickreply_editor.html b/phpBB/styles/prosilver/template/quickreply_editor.html
index c9ae52477e..9839494491 100644
--- a/phpBB/styles/prosilver/template/quickreply_editor.html
+++ b/phpBB/styles/prosilver/template/quickreply_editor.html
@@ -4,6 +4,7 @@
 		<div class="inner">
 				<h2 class="quickreply-title">{L_QUICKREPLY}</h2>
 				<fieldset class="fields1">
+				<!-- EVENT quickreply_editor_subject_before -->
 					<dl style="clear: left;">
 						<dt><label for="subject">{L_SUBJECT}{L_COLON}</label></dt>
 						<dd><input type="text" name="subject" id="subject" size="45" maxlength="124" tabindex="2" value="{SUBJECT}" class="inputbox autowidth" /></dd>