diff --git a/taiga/projects/serializers.py b/taiga/projects/serializers.py
index 3082f3f0..553bee2c 100644
--- a/taiga/projects/serializers.py
+++ b/taiga/projects/serializers.py
@@ -276,6 +276,7 @@ class ProjectMembershipSerializer(serializers.ModelSerializer):
     full_name = serializers.CharField(source='user.get_full_name', required=False)
     username = serializers.CharField(source='user.username', required=False)
     color = serializers.CharField(source='user.color', required=False)
+    is_active = serializers.BooleanField(source='user.is_active', required=False)
     photo = serializers.SerializerMethodField("get_photo")
 
     class Meta: