diff --git a/common/java/com/android/common/Patterns.java b/common/java/com/android/common/Patterns.java
index 2eab3e1..24a18c0 100644
--- a/common/java/com/android/common/Patterns.java
+++ b/common/java/com/android/common/Patterns.java
@@ -122,7 +122,7 @@
 
     public static final Pattern EMAIL_ADDRESS
         = Pattern.compile(
-            "[a-zA-Z0-9\\+\\.\\_\\%\\-]{1,256}" +
+            "[a-zA-Z0-9\\+\\.\\_\\%\\-\\+]{1,256}" +
             "\\@" +
             "[a-zA-Z0-9][a-zA-Z0-9\\-]{0,64}" +
             "(" +