diff --git a/backend/antigenapi/views.py b/backend/antigenapi/views.py
index 9c88c6e..3c3ee86 100644
--- a/backend/antigenapi/views.py
+++ b/backend/antigenapi/views.py
@@ -172,7 +172,12 @@ class Meta:  # noqa: D106
 class LibraryViewSet(AuditLogMixin, DeleteProtectionMixin, ModelViewSet):
     """A view set for libraries."""
 
-    queryset = Library.objects.all().select_related("cohort").select_related("project")
+    queryset = (
+        Library.objects.all()
+        .select_related("cohort")
+        .select_related("project")
+        .select_related("added_by")
+    )
     serializer_class = LibrarySerializer
     filterset_fields = ("project",)
 
@@ -379,7 +384,11 @@ def update(self, instance, validated_data):
 class ElisaPlateViewSet(AuditLogMixin, DeleteProtectionMixin, ModelViewSet):
     """A view set displaying all recorded elisa plates."""
 
-    queryset = ElisaPlate.objects.all().select_related("library__cohort")
+    queryset = (
+        ElisaPlate.objects.all()
+        .select_related("library__cohort")
+        .select_related("library__project")
+    )
     serializer_class = ElisaPlateSerializer
     filterset_fields = ("library", "library__cohort")