diff --git a/ExpCore/GuiParts/center.lua b/ExpCore/GuiParts/center.lua
index 498a140b..b69641ba 100644
--- a/ExpCore/GuiParts/center.lua
+++ b/ExpCore/GuiParts/center.lua
@@ -98,6 +98,7 @@ function center._center:add_tab(name,caption,tooltip,callback)
             if not success then error(err) end
         end
     end)
+    return self
 end
 
 return center
\ No newline at end of file