diff --git a/external-system-connector/src/main/java/eu/profinit/education/flightlog/dao/ClubDatabaseDaoStub.java b/external-system-connector/src/main/java/eu/profinit/education/flightlog/dao/ClubDatabaseDaoStub.java
index 7c7d18b..01fd512 100644
--- a/external-system-connector/src/main/java/eu/profinit/education/flightlog/dao/ClubDatabaseDaoStub.java
+++ b/external-system-connector/src/main/java/eu/profinit/education/flightlog/dao/ClubDatabaseDaoStub.java
@@ -9,15 +9,18 @@ import java.util.List;
 @Component
 @Profile("stub")
 public class ClubDatabaseDaoStub implements ClubDatabaseDao {
+    public static final String PILOT_ROLE = "PILOT";
+    public static final String BACKOFFICE_ROLE = "BACKOFFICE";
+
     @Override
     public List<User> getUsers() {
         return Arrays.asList(
-            new User(1L, "Kamila", "Spoustová", Arrays.asList("PILOT")),
-            new User(2L, "Naděžda", "Pavelková", Arrays.asList("PILOT")),
-            new User(3L, "Silvie", "Hronová", Arrays.asList("PILOT")),
-            new User(9L, "Miloš", "Korbel", Arrays.asList("PILOT", "BACKOFFICE")),
-            new User(10L, "Petr", "Hrubec", Arrays.asList("PILOT", "BACKOFFICE")),
-            new User(13L, "Michal", "Vyvlečka", Arrays.asList("BACKOFFICE"))
+            new User(1L, "Kamila", "Spoustová", Arrays.asList(PILOT_ROLE)),
+            new User(2L, "Naděžda", "Pavelková", Arrays.asList(PILOT_ROLE)),
+            new User(3L, "Silvie", "Hronová", Arrays.asList(PILOT_ROLE)),
+            new User(9L, "Miloš", "Korbel", Arrays.asList(PILOT_ROLE, BACKOFFICE_ROLE)),
+            new User(10L, "Petr", "Hrubec", Arrays.asList(PILOT_ROLE, BACKOFFICE_ROLE)),
+            new User(13L, "Michal", "Vyvlečka", Arrays.asList(BACKOFFICE_ROLE))
         );
     }
 }