diff --git a/src/OrchardCore/OrchardCore.ContentManagement.GraphQL/Queries/Types/ContentItemInterface.cs b/src/OrchardCore/OrchardCore.ContentManagement.GraphQL/Queries/Types/ContentItemInterface.cs
index cd6bb005c3e..4ce0c832dce 100644
--- a/src/OrchardCore/OrchardCore.ContentManagement.GraphQL/Queries/Types/ContentItemInterface.cs
+++ b/src/OrchardCore/OrchardCore.ContentManagement.GraphQL/Queries/Types/ContentItemInterface.cs
@@ -23,7 +23,7 @@ public ContentItemInterface(IOptions<GraphQLContentOptions> optionsAccessor)
             Field(ci => ci.ModifiedUtc, nullable: true);
             Field(ci => ci.PublishedUtc, nullable: true);
             Field(ci => ci.CreatedUtc, nullable: true);
-            Field(ci => ci.Owner);
+            Field(ci => ci.Owner, nullable: true);
             Field(ci => ci.Author, nullable: true);
         }