diff --git a/protocol/src/main/java/com/zfoo/protocol/util/AssertionUtils.java b/protocol/src/main/java/com/zfoo/protocol/util/AssertionUtils.java
index 3346ecb4..cd741fda 100644
--- a/protocol/src/main/java/com/zfoo/protocol/util/AssertionUtils.java
+++ b/protocol/src/main/java/com/zfoo/protocol/util/AssertionUtils.java
@@ -91,7 +91,7 @@ public abstract class AssertionUtils {
     }
 
     public static void le0(long x) {
-        le(x, 1);
+        le(x, 0);
     }
 
     public static void le1(long x) {