diff --git a/phpBB/docs/CHANGELOG.html b/phpBB/docs/CHANGELOG.html
index b01e970ef5..b7201dface 100644
--- a/phpBB/docs/CHANGELOG.html
+++ b/phpBB/docs/CHANGELOG.html
@@ -196,6 +196,7 @@ p a {
 		<li>[Fix] Allow adding of help language files within subdirectories (Bug #12783)</li>
 		<li>[Fix] Correctly apply smileys on posting having # within their emotion code</li>
 		<li>[Fix] Correctly convert smileys having double quotes within their emotion code (Bug #12731)</li>
+		<li>[Fix] The converter now adds the protocol to user website profile fields missing it (Bug #12819)</li>
 
 
 	</ul>
diff --git a/phpBB/includes/functions_convert.php b/phpBB/includes/functions_convert.php
index 324844aa7f..0aa3c205f5 100644
--- a/phpBB/includes/functions_convert.php
+++ b/phpBB/includes/functions_convert.php
@@ -224,7 +224,13 @@ function make_uid($timestamp)
 */
 function validate_website($url)
 {
-	return ($url == 'http://') ? '' : $url;
+	if ($url === 'http://'){
+		return '';
+	}
+	else if (strstr('http://', $url) !== 0)
+	{
+		return 'http://' . $url;
+	}
 }
 
 /**