diff --git a/phpBB/docs/CHANGELOG.html b/phpBB/docs/CHANGELOG.html
index 4e72e511bb..eb6a958dfb 100644
--- a/phpBB/docs/CHANGELOG.html
+++ b/phpBB/docs/CHANGELOG.html
@@ -127,6 +127,7 @@
 		<li>[Fix] Use a distinct log message for shadow topic deletions to differentiate between normal topic deletions. (Bug #34635)</li>
 		<li>[Fix] Fix problems with styles using an underscore within the filename. (Bug #34315)</li>
 		<li>[Fix] Better return links when deleting topics through the MCP. (Bug #34655)</li>
+		<li>[Fix] Add quoting support to PM history when composing a reply. (Bug #34285)</li>
 
 		<li>[Change] No longer allow the direct use of MULTI_INSERT in sql_build_array. sql_multi_insert() must be used.</li>
 		<li>[Change] Display warning in ACP if config.php file is left writable.</li>
diff --git a/phpBB/includes/functions_privmsgs.php b/phpBB/includes/functions_privmsgs.php
index ec09e168bc..f816cf0321 100644
--- a/phpBB/includes/functions_privmsgs.php
+++ b/phpBB/includes/functions_privmsgs.php
@@ -1786,6 +1786,7 @@ function message_history($msg_id, $user_id, $message_row, $folder, $in_post_mode
 		}
 
 		$template->assign_block_vars('history_row', array(
+			'MESSAGE_AUTHOR_QUOTE'		=> (($in_post_mode && $auth->acl_get('u_sendpm') && $author_id != ANONYMOUS && $author_id != $user->data['user_id']) ? addslashes(get_username_string('username', $author_id, $row['username'], $row['user_colour'], $row['username'])) : ''),
 			'MESSAGE_AUTHOR_FULL'		=> get_username_string('full', $author_id, $row['username'], $row['user_colour'], $row['username']),
 			'MESSAGE_AUTHOR_COLOUR'		=> get_username_string('colour', $author_id, $row['username'], $row['user_colour'], $row['username']),
 			'MESSAGE_AUTHOR'			=> get_username_string('username', $author_id, $row['username'], $row['user_colour'], $row['username']),
diff --git a/phpBB/styles/prosilver/template/ucp_pm_history.html b/phpBB/styles/prosilver/template/ucp_pm_history.html
index 5f2994f145..aaa4c53ac0 100644
--- a/phpBB/styles/prosilver/template/ucp_pm_history.html
+++ b/phpBB/styles/prosilver/template/ucp_pm_history.html
@@ -10,18 +10,16 @@
 		<div class="inner"><span class="corners-top"><span></span></span>
 
 		<div class="postbody" id="pr{history_row.MSG_ID}">
-			<!-- IF history_row.U_QUOTE -->
+			<!-- IF history_row.U_QUOTE or history_row.MESSAGE_AUTHOR_QUOTE -->
 			<ul class="profile-icons">
-				<li class="quote-icon"><a href="{history_row.U_QUOTE}" title="{L_QUOTE} {history_row.MESSAGE_AUTHOR}"><span>{L_QUOTE} {history_row.MESSAGE_AUTHOR}</span></a></li>
+				<li class="quote-icon"><a <!-- IF history_row.U_QUOTE -->href="{history_row.U_QUOTE}"<!-- ELSE -->href="#postingbox" onclick="addquote({history_row.MSG_ID}, '{history_row.MESSAGE_AUTHOR_QUOTE}');"<!-- ENDIF -->" title="{L_QUOTE} {history_row.MESSAGE_AUTHOR}"><span>{L_QUOTE} {history_row.MESSAGE_AUTHOR}</span></a></li>
 			</ul>
 			<!-- ENDIF -->
 
 			<h3><a href="{history_row.U_VIEW_MESSAGE}" <!-- IF history_row.S_CURRENT_MSG -->class="current"<!-- ENDIF -->>{history_row.SUBJECT}</a></h3>
 			<p class="author<!-- IF history_row.S_CURRENT_MSG --> current<!-- ENDIF -->">{history_row.MINI_POST_IMG} {L_SENT_AT}: <strong>{history_row.SENT_DATE}</strong><br />
 				{L_MESSAGE_BY_AUTHOR} {history_row.MESSAGE_AUTHOR_FULL}</p>
-			<div class="content<!-- IF history_row.S_CURRENT_MSG --> current<!-- ENDIF -->" id="message_{history_row.MSG_ID}">
-				{history_row.MESSAGE}
-			</div>
+			<div class="content<!-- IF history_row.S_CURRENT_MSG --> current<!-- ENDIF -->" id="message_{history_row.MSG_ID}">{history_row.MESSAGE}</div>
 		</div>
 
 		<span class="corners-bottom"><span></span></span></div>
diff --git a/phpBB/styles/subsilver2/template/ucp_pm_history.html b/phpBB/styles/subsilver2/template/ucp_pm_history.html
index 9e05368340..b880b8a72c 100644
--- a/phpBB/styles/subsilver2/template/ucp_pm_history.html
+++ b/phpBB/styles/subsilver2/template/ucp_pm_history.html
@@ -32,7 +32,7 @@
 					<td valign="top">
 						<table width="100%" cellspacing="0" cellpadding="2">
 						<tr>
-							<td><div id="message_{history_row.MSG_ID}"><div class="postbody">{history_row.MESSAGE}</div></div></td>
+							<td><div class="postbody" id="message_{history_row.MSG_ID}">{history_row.MESSAGE}</div></td>
 						</tr>
 						</table>
 					</td>
@@ -54,7 +54,7 @@
 
 		<!-- IF history_row.S_ROW_COUNT is even --><tr class="row1"><!-- ELSE --><tr class="row2"><!-- ENDIF -->
 			<td class="gensmall"><a href="{history_row.U_VIEW_MESSAGE}">{L_VIEW_PM}</a></td>
-			<td><div class="gensmall" style="float: {S_CONTENT_FLOW_BEGIN};">&nbsp;<!-- IF history_row.U_PROFILE --><a href="{history_row.U_PROFILE}">{PROFILE_IMG}</a> <!-- ENDIF --> <!-- IF history_row.U_EMAIL --><a href="{history_row.U_EMAIL}">{EMAIL_IMG}</a> <!-- ENDIF -->&nbsp;</div> <div class="gensmall" style="float: {S_CONTENT_FLOW_END};"><!-- IF history_row.U_QUOTE --><a href="{history_row.U_QUOTE}">{QUOTE_IMG}</a> <!-- ENDIF --> <!-- IF history_row.U_POST_REPLY_PM --><a href="{history_row.U_POST_REPLY_PM}">{REPLY_IMG}</a><!-- ENDIF -->&nbsp;</div></td>
+			<td><div class="gensmall" style="float: {S_CONTENT_FLOW_BEGIN};">&nbsp;<!-- IF history_row.U_PROFILE --><a href="{history_row.U_PROFILE}">{PROFILE_IMG}</a> <!-- ENDIF --> <!-- IF history_row.U_EMAIL --><a href="{history_row.U_EMAIL}">{EMAIL_IMG}</a> <!-- ENDIF -->&nbsp;</div> <div class="gensmall" style="float: {S_CONTENT_FLOW_END};"><!-- IF history_row.U_QUOTE or history_row.MESSAGE_AUTHOR_QUOTE --><a <!-- IF history_row.U_QUOTE -->href="{history_row.U_QUOTE}"<!-- ELSE -->href="#" onclick="addquote({history_row.MSG_ID}, '{history_row.MESSAGE_AUTHOR_QUOTE}'); return false;"<!-- ENDIF -->>{QUOTE_IMG}</a> <!-- ENDIF --> <!-- IF history_row.U_POST_REPLY_PM --><a href="{history_row.U_POST_REPLY_PM}">{REPLY_IMG}</a><!-- ENDIF -->&nbsp;</div></td>
 		</tr>
 		<tr>
 			<td class="spacer" colspan="2"><img src="images/spacer.gif" alt="" width="1" height="1" /></td>