diff --git a/phpBB/styles/subsilver2/template/captcha_default.html b/phpBB/styles/subsilver2/template/captcha_default.html
index 4c65f81643..e2edf0b810 100644
--- a/phpBB/styles/subsilver2/template/captcha_default.html
+++ b/phpBB/styles/subsilver2/template/captcha_default.html
@@ -12,6 +12,6 @@
 	</tr>
 	<tr>
 		<td class="row1"><b class="genmed">{L_CONFIRM_CODE}:</b><br /><span class="gensmall">{L_CONFIRM_CODE_EXPLAIN}</span></td>
-		<td class="row2"><input class="post" type="text" name="confirm_code" size="8" maxlength="8" />
+		<td class="row2"><input class="post" type="text" name="confirm_code" size="8" maxlength="8"<!-- IF $CAPTCHA_TAB_INDEX --> tabindex="{$CAPTCHA_TAB_INDEX}"<!-- ENDIF --> />
 		<!-- IF S_CONFIRM_REFRESH --><input type="submit" name="refresh_vc" id="refresh_vc" class="btnlite" value="{L_VC_REFRESH}" /><!-- ENDIF --></td>
 	</tr>
diff --git a/phpBB/styles/subsilver2/template/captcha_qa.html b/phpBB/styles/subsilver2/template/captcha_qa.html
index 23d2a92f68..acc9cdcdfb 100644
--- a/phpBB/styles/subsilver2/template/captcha_qa.html
+++ b/phpBB/styles/subsilver2/template/captcha_qa.html
@@ -3,6 +3,6 @@
 	</tr>
 	<tr>
 		<td class="row1"><b class="genmed">{QA_CONFIRM_QUESTION}:</b><br /><span class="gensmall">{L_CONFIRM_QUESTION_EXPLAIN}</span></td>
-		<td class="row2"><input class="post" type="text" name="qa_answer" size="80" /></td>
+		<td class="row2"><input class="post" type="text" name="qa_answer" size="80"<!-- IF $CAPTCHA_TAB_INDEX --> tabindex="{$CAPTCHA_TAB_INDEX}"<!-- ENDIF --> /></td>
 		<input type="hidden" name="qa_confirm_id" id="confirm_id" value="{QA_CONFIRM_ID}" /></td>
 	</tr>
diff --git a/phpBB/styles/subsilver2/template/login_body.html b/phpBB/styles/subsilver2/template/login_body.html
index 262341e0c0..ba316517a9 100644
--- a/phpBB/styles/subsilver2/template/login_body.html
+++ b/phpBB/styles/subsilver2/template/login_body.html
@@ -68,7 +68,7 @@
 <!-- IF CAPTCHA_TEMPLATE and S_CONFIRM_CODE -->
 </table>
 <table class="tablebg" width="100%" cellspacing="1">
-		
+	<!-- DEFINE $CAPTCHA_TAB_INDEX = 4 -->
 	<!-- INCLUDE {CAPTCHA_TEMPLATE} -->
 <!-- ENDIF -->
 
diff --git a/phpBB/styles/subsilver2/template/posting_body.html b/phpBB/styles/subsilver2/template/posting_body.html
index 67ef1443ab..0b44446abd 100644
--- a/phpBB/styles/subsilver2/template/posting_body.html
+++ b/phpBB/styles/subsilver2/template/posting_body.html
@@ -333,6 +333,7 @@
 <!-- ENDIF -->
 
 		<!-- IF CAPTCHA_TEMPLATE and S_CONFIRM_CODE -->
+		<!-- DEFINE $CAPTCHA_TAB_INDEX = 4 -->
 		<!-- INCLUDE {CAPTCHA_TEMPLATE} -->
 		<!-- ENDIF -->