diff --git a/includes/CommentModifier.php b/includes/CommentModifier.php
index 5cb79c1f8..6676fe6c7 100644
--- a/includes/CommentModifier.php
+++ b/includes/CommentModifier.php
@@ -294,6 +294,29 @@ class CommentModifier {
 		return $listItem;
 	}
 
+	/**
+	 * Add a reply to a specific comment
+	 *
+	 * @param CommentItem $comment Comment being replied to
+	 * @param DOMElement $container Container of comment DOM nodes
+	 */
+	public static function addReply( CommentItem $comment, DOMElement $container ) {
+		$newParsoidItem = null;
+		// Transfer comment DOM to Parsoid DOM
+		// Wrap every root node of the document in a new list item (dd/li).
+		// In wikitext mode every root node is a paragraph.
+		// In visual mode the editor takes care of preventing problematic nodes
+		// like <table> or <h2> from ever occurring in the comment.
+		while ( $container->childNodes->length ) {
+			if ( !$newParsoidItem ) {
+				$newParsoidItem = self::addListItem( $comment );
+			} else {
+				$newParsoidItem = self::addSiblingListItem( $newParsoidItem );
+			}
+			$newParsoidItem->appendChild( $container->firstChild );
+		}
+	}
+
 	/**
 	 * Create an element that will convert to the provided wikitext
 	 *
diff --git a/modules/CommentController.js b/modules/CommentController.js
index 334a1d3e5..fa7a83b87 100644
--- a/modules/CommentController.js
+++ b/modules/CommentController.js
@@ -304,7 +304,7 @@ CommentController.prototype.createCommentContainerFromHtml = function ( doc, htm
 };
 
 CommentController.prototype.postReply = function ( comment ) {
-	var container, newParsoidItem, wikitext,
+	var container, wikitext,
 		doc = comment.range.endContainer.ownerDocument;
 
 	if ( this.replyWidget.getMode() === 'source' ) {
@@ -319,19 +319,7 @@ CommentController.prototype.postReply = function ( comment ) {
 		container = this.createCommentContainerFromHtml( doc, this.replyWidget.getValue() );
 	}
 
-	// Transfer comment DOM to Parsoid DOM
-	// Wrap every root node of the document in a new list item (dd/li).
-	// In wikitext mode every root node is a paragraph.
-	// In visual mode the editor takes care of preventing problematic nodes
-	// like <table> or <h2> from ever occurring in the comment.
-	while ( container.children.length ) {
-		if ( !newParsoidItem ) {
-			newParsoidItem = modifier.addListItem( comment );
-		} else {
-			newParsoidItem = modifier.addSiblingListItem( newParsoidItem );
-		}
-		newParsoidItem.appendChild( container.firstChild );
-	}
+	modifier.addReply( comment, container );
 };
 
 CommentController.prototype.save = function ( parsoidData ) {
diff --git a/modules/modifier.js b/modules/modifier.js
index f3000c393..cd0566b53 100644
--- a/modules/modifier.js
+++ b/modules/modifier.js
@@ -292,6 +292,30 @@ function addSiblingListItem( previousItem ) {
 	return listItem;
 }
 
+/**
+ * Add a reply to a specific comment
+ *
+ * @param {CommentItem} comment Comment being replied to
+ * @param {HTMLElement} container Container of comment DOM nodes
+ */
+function addReply( comment, container ) {
+	var newParsoidItem;
+
+	// Transfer comment DOM to Parsoid DOM
+	// Wrap every root node of the document in a new list item (dd/li).
+	// In wikitext mode every root node is a paragraph.
+	// In visual mode the editor takes care of preventing problematic nodes
+	// like <table> or <h2> from ever occurring in the comment.
+	while ( container.childNodes.length ) {
+		if ( !newParsoidItem ) {
+			newParsoidItem = addListItem( comment );
+		} else {
+			newParsoidItem = addSiblingListItem( newParsoidItem );
+		}
+		newParsoidItem.appendChild( container.firstChild );
+	}
+}
+
 function createWikitextNode( doc, wt ) {
 	var span = doc.createElement( 'span' );
 
@@ -303,6 +327,7 @@ function createWikitextNode( doc, wt ) {
 
 module.exports = {
 	addReplyLink: addReplyLink,
+	addReply: addReply,
 	addListItem: addListItem,
 	removeAddedListItem: removeAddedListItem,
 	addSiblingListItem: addSiblingListItem,