diff --git a/lib/jsduck/tag/since.rb b/lib/jsduck/tag/since.rb
index 72a55abba524d20e4bc7941d3b3d870e79572719..e4a9590dae7dab90ed5b35e94cb1e01acd19fa62 100644
--- a/lib/jsduck/tag/since.rb
+++ b/lib/jsduck/tag/since.rb
@@ -10,9 +10,10 @@ module JsDuck::Tag
     end
 
     def parse(p)
-      p.add_tag(:since)
-      p.skip_horiz_white
-      p.current_tag[:version] = p.match(/.*$/).strip
+      {
+        :tagname => :since,
+        :version => p.hw.match(/.*$/).strip,
+      }
     end
 
     def process_doc(tags)