diff --git a/web/src/main/java/com/navercorp/pinpoint/web/vo/User.java b/web/src/main/java/com/navercorp/pinpoint/web/vo/User.java
index e60f831dbe94..aede910f07a4 100644
--- a/web/src/main/java/com/navercorp/pinpoint/web/vo/User.java
+++ b/web/src/main/java/com/navercorp/pinpoint/web/vo/User.java
@@ -68,7 +68,7 @@ public void setEmail(String email) {
     }
     
     public void removeHyphenForPhoneNumber() {
-        if(phoneNumber.contains("-")) {
+        if (phoneNumber != null && phoneNumber.contains("-")) {
             phoneNumber = phoneNumber.replace("-", "");
         }
     }