diff --git a/phpBB/adm/style/confirm_body.html b/phpBB/adm/style/confirm_body.html
index fa3f1e6c64..d0360d1b3a 100644
--- a/phpBB/adm/style/confirm_body.html
+++ b/phpBB/adm/style/confirm_body.html
@@ -4,7 +4,7 @@
 	<p>{MESSAGE_TEXT}</p>
 
 	<fieldset class="submit-buttons">
-		<input type="button" name="confirm" value="{L_YES}" class="button1" />&nbsp;
+		<input type="button" name="confirm" value="{L_YES}" class="button2" />&nbsp;
 		<input type="button" name="cancel" value="{L_NO}" class="button2" />
 	</fieldset>
 
diff --git a/phpBB/styles/prosilver/template/confirm_body.html b/phpBB/styles/prosilver/template/confirm_body.html
index eb0cad2597..bf575c20fa 100644
--- a/phpBB/styles/prosilver/template/confirm_body.html
+++ b/phpBB/styles/prosilver/template/confirm_body.html
@@ -4,7 +4,7 @@
 	<p>{MESSAGE_TEXT}</p>
 
 	<fieldset class="submit-buttons">
-		<input type="button" name="confirm" value="{L_YES}" class="button1" />&nbsp;
+		<input type="button" name="confirm" value="{L_YES}" class="button2" />&nbsp;
 		<input type="button" name="cancel" value="{L_NO}" class="button2" />
 	</fieldset>
 
diff --git a/phpBB/styles/subsilver2/template/confirm_body.html b/phpBB/styles/subsilver2/template/confirm_body.html
index 7516196b3c..1712017c38 100644
--- a/phpBB/styles/subsilver2/template/confirm_body.html
+++ b/phpBB/styles/subsilver2/template/confirm_body.html
@@ -9,7 +9,7 @@
 		<th>{MESSAGE_TITLE}</th>
 	</tr>
 	<tr>
-		<td class="row1" align="center"><br /><p class="gen">{MESSAGE_TEXT}</p><br />{S_HIDDEN_FIELDS}<input type="submit" name="confirm" value="{YES_VALUE}" class="btnmain" />&nbsp;&nbsp;<input type="submit" name="cancel" value="{L_NO}" class="btnlite" /></td>
+		<td class="row1" align="center"><br /><p class="gen">{MESSAGE_TEXT}</p><br />{S_HIDDEN_FIELDS}<input type="submit" name="confirm" value="{YES_VALUE}" class="btnlite" />&nbsp;&nbsp;<input type="submit" name="cancel" value="{L_NO}" class="btnlite" /></td>
 	</tr>
 	</table>