diff --git a/src/com/hellogithub/servlet/systemAdmin/insertCategoryServlet.java b/src/com/hellogithub/servlet/systemAdmin/insertCategoryServlet.java
index 58da547..59806d5 100644
--- a/src/com/hellogithub/servlet/systemAdmin/insertCategoryServlet.java
+++ b/src/com/hellogithub/servlet/systemAdmin/insertCategoryServlet.java
@@ -32,7 +32,7 @@ public class insertCategoryServlet extends HttpServlet {
 
         String name = req.getParameter("name");
         String url = req.getParameter("url");
-        String isValid = req.getHeader("isValid");
+        String isValid = req.getParameter("isValid");
         int num = categoryService.insertCategory(name,url,isValid);
         PrintWriter writer = resp.getWriter();
         if(num == 0)