diff --git a/src/main/java/com/alibaba/fastjson/JSON.java b/src/main/java/com/alibaba/fastjson/JSON.java
index 6159c72b1b..147e5c5009 100644
--- a/src/main/java/com/alibaba/fastjson/JSON.java
+++ b/src/main/java/com/alibaba/fastjson/JSON.java
@@ -67,7 +67,7 @@ public abstract class JSON implements JSONStreamAware, JSONAware {
     public static Locale           defaultLocale        = Locale.getDefault();
     public static String           DEFAULT_TYPE_KEY     = "@type";
     static final SerializeFilter[] emptyFilters         = new SerializeFilter[0];
-    public static String           DEFFAULT_DATE_FORMAT = "yyyy-MM-dd HH:mm:ss";
+    public static String           DEFAULT_DATE_FORMAT = "yyyy-MM-dd HH:mm:ss";
     public static int              DEFAULT_PARSER_FEATURE;
     public static int              DEFAULT_GENERATE_FEATURE;