diff --git a/doorip-api/src/main/java/org/doorip/trip/service/TripDetailService.java b/doorip-api/src/main/java/org/doorip/trip/service/TripDetailService.java
index f4a0658..375a64e 100644
--- a/doorip-api/src/main/java/org/doorip/trip/service/TripDetailService.java
+++ b/doorip-api/src/main/java/org/doorip/trip/service/TripDetailService.java
@@ -164,10 +164,11 @@ private boolean isEqualUserAndParticipantUser(User user, User participantUser) {
     }
 
     private int getValidatedResult(User user) {
-        try {
-            return user.getResult().getNumResult();
-        } catch (NullPointerException e) {
+        if (user.getResult() == null) {
             return -1;
         }
+        else {
+            return user.getResult().getNumResult();
+        }
     }
 }
diff --git a/doorip-domain/src/main/java/org/doorip/user/domain/Result.java b/doorip-domain/src/main/java/org/doorip/user/domain/Result.java
index 286e2d0..345dda9 100644
--- a/doorip-domain/src/main/java/org/doorip/user/domain/Result.java
+++ b/doorip-domain/src/main/java/org/doorip/user/domain/Result.java
@@ -20,7 +20,7 @@ public enum Result {
     AEP(6, "AEP"),
     AEI(7, "AEI");
 
-    private final int numResult;
+    private final Integer numResult;
     private final String stringResult;
 
     public static Result getEnumResultFromStringResult(String stringResult) {