diff --git a/registration/views.py b/registration/views.py
index aa017e8..2d0fe1a 100644
--- a/registration/views.py
+++ b/registration/views.py
@@ -836,10 +836,11 @@ class SolutionView(LoginRequiredMixin, View):
             raise Http404
         solution = Solution.objects.get(file__endswith=filename)
         user = request.user
-        if user.registration.participates:
+        if user.registration.participates and user.registration.team.participation:
             passage_participant_qs = Passage.objects.filter(Q(defender=user.registration.team.participation)
                                                             | Q(opponent=user.registration.team.participation)
-                                                            | Q(reviewer=user.registration.team.participation),
+                                                            | Q(reviewer=user.registration.team.participation)
+                                                            | Q(observer=user.registration.team.participation),
                                                             defender=solution.participation,
                                                             solution_number=solution.problem)
         else: