diff --git a/linkwe-gateway/src/main/java/com/linkwechat/gateway/utils/Base64.java b/linkwe-gateway/src/main/java/com/linkwechat/gateway/utils/Base64.java
index 94a2d6923787647eb5aac6d58084aff83419f1b0..28b4ddf499c4bbb823c1ca9b8a2e784c6190512d 100644
--- a/linkwe-gateway/src/main/java/com/linkwechat/gateway/utils/Base64.java
+++ b/linkwe-gateway/src/main/java/com/linkwechat/gateway/utils/Base64.java
@@ -138,7 +138,7 @@ public final class Base64 {
      * Decodes Base64 data into octects
      *
      * @param encoded string containing Base64 data
-     * @return Array containind decoded data.
+     * @return Array containing decoded data.
      */
     public static byte[] decode(String encoded) {
         if (encoded == null) {