diff --git a/app/ring_groups/ring_group_edit.php b/app/ring_groups/ring_group_edit.php
index 01a47c7eec..6bd70250c9 100644
--- a/app/ring_groups/ring_group_edit.php
+++ b/app/ring_groups/ring_group_edit.php
@@ -433,7 +433,7 @@ else {
 	echo "	".$text['label-extension']."\n";
 	echo "</td>\n";
 	echo "<td class='vtable' align='left'>\n";
-	echo "	<input class='formfld' type='number' name='ring_group_extension' maxlength='255' min='0' step='1' value=\"$ring_group_extension\" required='required'>\n";
+	echo "	<input class='formfld' type='text' name='ring_group_extension' maxlength='255' value=\"$ring_group_extension\" required='required'>\n";
 	echo "<br />\n";
 	echo $text['description-extension']."\n";
 	echo "</td>\n";