diff --git a/phpBB/docs/CHANGELOG.html b/phpBB/docs/CHANGELOG.html
index 37409f6e71..8d822a4194 100644
--- a/phpBB/docs/CHANGELOG.html
+++ b/phpBB/docs/CHANGELOG.html
@@ -135,6 +135,7 @@
 		<li>[Change] Log the forum name that topics are moved into.</li>
 		<li>[Change] Automatically add users/groups to the PM recipient list, if entered or selected.</li>
 		<li>[Change] Reply to PM now includes all previous recipients and not only the original sender.</li>
+		<li>[Change] Make topic selection for merge less confusing by removing unneeded controls. (Bug #21925)</li>
 
 		<li>[Feature] Allow limited inheritance for template sets.</li>
 		<li>[Feature] Allow hard disabling of the template editor.</li>
diff --git a/phpBB/styles/prosilver/template/mcp_forum.html b/phpBB/styles/prosilver/template/mcp_forum.html
index ceb10f4b76..abca202c73 100644
--- a/phpBB/styles/prosilver/template/mcp_forum.html
+++ b/phpBB/styles/prosilver/template/mcp_forum.html
@@ -26,7 +26,7 @@
 					<dt>{L_TOPICS}</dt>
 					<dd class="posts">{L_REPLIES}</dd>
 					<dd class="lastpost"><span>{L_LAST_POST}</span></dd>
-					<dd class="mark">{L_MARK}</dd>
+					<!-- IF not S_MERGE_SELECT --><dd class="mark">{L_MARK}</dd><!-- ENDIF -->
 				</dl>
 			</li>
 		</ul>
@@ -47,9 +47,11 @@
 				<dd class="posts">{topicrow.REPLIES} <dfn>{L_REPLIES}</dfn></dd>
 				<dd class="lastpost"><span><dfn>{L_LAST_POST} </dfn>{L_POST_BY_AUTHOR} {topicrow.LAST_POST_AUTHOR_FULL} {L_POSTED_ON_DATE}<br />{topicrow.LAST_POST_TIME}</span>
 				</dd>
+				<!-- IF not S_MERGE_SELECT -->
 				<dd class="mark">
 					<!-- IF not topicrow.S_MOVED_TOPIC --><input type="checkbox" name="topic_id_list[]" value="{topicrow.TOPIC_ID}"<!-- IF topicrow.S_TOPIC_CHECKED --> checked="checked"<!-- ENDIF --> /><!-- ELSE -->&nbsp;<!-- ENDIF -->
 				</dd>
+				<!-- ENDIF -->
 			</dl>
 		</li>
 		<!-- END topicrow -->
@@ -83,6 +85,7 @@
 </div>
 
 <fieldset class="display-actions">
+	<!-- IF not S_MERGE_SELECT -->
 	<select name="action">
 		<option value="" selected="selected">{L_SELECT_ACTION}</option>
 		<!-- IF S_CAN_DELETE --><option value="delete_topic">{L_DELETE}</option><!-- ENDIF -->
@@ -100,6 +103,7 @@
 	</select>
 	<input class="button2" type="submit" value="{L_SUBMIT}" />
 	<div><a href="#" onclick="marklist('mcp', 'topic_id_list', true); return false;">{L_MARK_ALL}</a> :: <a href="#" onclick="marklist('mcp', 'topic_id_list', false); return false;">{L_UNMARK_ALL}</a></div>
+	<!-- ENDIF -->
 	{S_FORM_TOKEN}
 </fieldset>
 </form>
diff --git a/phpBB/styles/subsilver2/template/mcp_forum.html b/phpBB/styles/subsilver2/template/mcp_forum.html
index 956d253aa6..80a6047858 100644
--- a/phpBB/styles/subsilver2/template/mcp_forum.html
+++ b/phpBB/styles/subsilver2/template/mcp_forum.html
@@ -44,7 +44,7 @@
 		<td class="row1" width="50" align="center"><p class="topicdetails">{topicrow.REPLIES}</p></td>
 		<td class="row1" width="120" align="center"><p class="topicdetails">{topicrow.LAST_POST_TIME}</p></td>
 		<td class="row2" align="center">
-			<!-- IF not topicrow.S_MOVED_TOPIC --><input type="checkbox" class="radio" name="topic_id_list[]" value="{topicrow.TOPIC_ID}"<!-- IF topicrow.S_TOPIC_CHECKED --> checked="checked"<!-- ENDIF --> /><!-- ELSE -->&nbsp;<!-- ENDIF -->
+			<!-- IF not topicrow.S_MOVED_TOPIC and not S_MERGE_SELECT --><input type="checkbox" class="radio" name="topic_id_list[]" value="{topicrow.TOPIC_ID}"<!-- IF topicrow.S_TOPIC_CHECKED --> checked="checked"<!-- ENDIF --> /><!-- ELSE -->&nbsp;<!-- ENDIF -->
 		</td>
 	</tr>
 <!-- BEGINELSE -->
@@ -52,6 +52,7 @@
 		<td class="row1" colspan="8" align="center"><p class="gen">{L_NO_TOPICS}</p></td>
 	</tr>
 <!-- END topicrow -->
+<!-- IF not S_MERGE_SELECT -->
 <tr>
 	<td class="cat" colspan="6" align="{S_CONTENT_FLOW_END}">
 		<select name="action">
@@ -72,14 +73,17 @@
 		<input class="btnmain" type="submit" value="{L_SUBMIT}" />
 	</td>
 </tr>
+<!-- ENDIF -->
 </table>
 {S_FORM_TOKEN}
 </form>
 
+<!-- IF not S_MERGE_SELECT -->
 <table width="100%" cellspacing="2" cellpadding="2" border="0" align="center">
 <tr>
 	<td align="{S_CONTENT_FLOW_END}" valign="top" nowrap="nowrap"><b class="gensmall"><a href="#" onclick="marklist('mcp', 'topic_id_list', true); return false;">{L_MARK_ALL}</a> :: <a href="#" onclick="marklist('mcp', 'topic_id_list', false); return false;">{L_UNMARK_ALL}</a></b></td>
 </tr>
 </table>
+<!-- ENDIF -->
 
 <!-- INCLUDE mcp_footer.html -->
\ No newline at end of file