diff --git a/basics/java-basic/java-pass-by.md b/basics/java-basic/java-pass-by.md
index 0c9044e10ab629f493ef5afd86d7be0d4e7b36ea..72e98ddda8fa65d62adfa9ae43e759f8e8dadb6e 100644
--- a/basics/java-basic/java-pass-by.md
+++ b/basics/java-basic/java-pass-by.md
@@ -51,7 +51,7 @@ public static void main(String[] args) {
   ParamTest pt = new ParamTest();
 
   int i = 10;
-  pt.pass(10);
+  pt.pass(i);
   System.out.println("print in main , i is " + i);
 }