diff --git a/coldfront/plugins/api/serializers.py b/coldfront/plugins/api/serializers.py
index 2f5cbb22e..dd4ee7b58 100644
--- a/coldfront/plugins/api/serializers.py
+++ b/coldfront/plugins/api/serializers.py
@@ -188,7 +188,7 @@ class Meta:
 
 
 class ProjectUserSerializer(serializers.ModelSerializer):
-    user = serializers.SlugRelatedField(slug_field='full_name', read_only=True)
+    user = serializers.SlugRelatedField(slug_field='username', read_only=True)
     status = serializers.SlugRelatedField(slug_field='name', read_only=True)
     role = serializers.SlugRelatedField(slug_field='name', read_only=True)
 
@@ -209,12 +209,12 @@ class Meta:
 
     def get_project_users(self, obj):
         request = self.context.get('request', None)
-        if request and request.query_params.get('project_users') == 'true':
+        if request and request.query_params.get('project_users') in ['true','True']:
             return ProjectUserSerializer(obj.projectuser_set, many=True, read_only=True).data
         return None
 
     def get_allocations(self, obj):
         request = self.context.get('request', None)
-        if request and request.query_params.get('allocations') == 'true':
+        if request and request.query_params.get('allocations') in ['true','True']:
             return ProjAllocationSerializer(obj.allocation_set, many=True, read_only=True).data
         return None
diff --git a/coldfront/plugins/api/views.py b/coldfront/plugins/api/views.py
index 99ca6243c..5622a246a 100644
--- a/coldfront/plugins/api/views.py
+++ b/coldfront/plugins/api/views.py
@@ -251,7 +251,7 @@ class ProjectViewSet(viewsets.ReadOnlyModelViewSet):
     Query parameters:
     - allocations (default false)
         Show related allocation data.
-    - users (default false)
+    - project_users (default false)
         Show related user data.
     '''
     serializer_class = serializers.ProjectSerializer
@@ -275,7 +275,7 @@ def get_queryset(self):
                 )
             ).distinct().order_by('pi')
 
-        if self.request.query_params.get('users') in ['True', 'true']:
+        if self.request.query_params.get('project_users') in ['True', 'true']:
             projects = projects.prefetch_related('projectuser_set')
 
         if self.request.query_params.get('allocations') in ['True', 'true']: