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/assets/javascript/core.js b/phpBB/assets/javascript/core.js
index 8bbea8b8c9..642d513cb6 100644
--- a/phpBB/assets/javascript/core.js
+++ b/phpBB/assets/javascript/core.js
@@ -136,7 +136,7 @@ phpbb.confirm = function(msg, callback, fadedark) {
 	});
 
 	var clickHandler = function(e) {
-		var res = this.className === 'button1';
+		var res = this.name === 'confirm';
 		var fade = (typeof fadedark !== 'undefined' && !fadedark && res) ? div : dark;
 		fade.fadeOut(phpbb.alertTime, function() {
 			div.hide();
@@ -164,11 +164,11 @@ phpbb.confirm = function(msg, callback, fadedark) {
 
 	$(document).bind('keydown', function(e) {
 		if (e.keyCode === keymap.ENTER) {
-			$('input[type="button"].button1').trigger('click');
+			$('input[name="confirm"]').trigger('click');
 			e.preventDefault();
 			e.stopPropagation();
 		} else if (e.keyCode === keymap.ESC) {
-			$('input[type="button"].button2').trigger('click');
+			$('input[name="cancel"]').trigger('click');
 			e.preventDefault();
 			e.stopPropagation();
 		}
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>