diff --git a/src/main/java/de/tavolio/bootstrap/RoleBootstrapper.java b/src/main/java/de/tavolio/bootstrap/RoleBootstrapper.java
index 0709691..a3695e7 100644
--- a/src/main/java/de/tavolio/bootstrap/RoleBootstrapper.java
+++ b/src/main/java/de/tavolio/bootstrap/RoleBootstrapper.java
@@ -18,9 +18,12 @@ public class RoleBootstrapper
 
     public void run(RealmEntity realm, List<Role> roles)
     {
-        for (Role role : roles)
+        if (roles != null)
         {
-            run(realm, role);
+            for (Role role : roles)
+            {
+                run(realm, role);
+            }
         }
     }