diff --git a/src/org/redkale/convert/json/JsonWriter.java b/src/org/redkale/convert/json/JsonWriter.java
index efb460c10..914ead004 100644
--- a/src/org/redkale/convert/json/JsonWriter.java
+++ b/src/org/redkale/convert/json/JsonWriter.java
@@ -189,7 +189,7 @@ public class JsonWriter extends Writer {
 
     @Override
     public final void writeChar(char value) {
-        writeTo('\'', value, '\'');
+        writeInt(value);
     }
 
     @Override