diff --git a/src/CoreDdd.Nhibernate/Queries/BaseNhibernateQueryHandler.cs b/src/CoreDdd.Nhibernate/Queries/BaseNhibernateQueryHandler.cs
index 5b16cf49..2456f5cc 100644
--- a/src/CoreDdd.Nhibernate/Queries/BaseNhibernateQueryHandler.cs
+++ b/src/CoreDdd.Nhibernate/Queries/BaseNhibernateQueryHandler.cs
@@ -33,6 +33,7 @@ protected BaseNhibernateQueryHandler(NhibernateUnitOfWork unitOfWork)
             Session = unitOfWork.Session;
         }
 
+#if NET40
         /// <summary>
         /// Executes the query.
         /// </summary>
@@ -43,6 +44,7 @@ public virtual IEnumerable<TResult> Execute<TResult>(TQuery query)
         {
             return Enumerable.Empty<TResult>();
         }
+#endif
 
 #if !NET40
 #pragma warning disable CS1998 // Async method lacks 'await' operators and will run synchronously
diff --git a/src/CoreDdd/Queries/IQueryHandler.cs b/src/CoreDdd/Queries/IQueryHandler.cs
index 2673a700..68ad4fe2 100644
--- a/src/CoreDdd/Queries/IQueryHandler.cs
+++ b/src/CoreDdd/Queries/IQueryHandler.cs
@@ -12,6 +12,7 @@ namespace CoreDdd.Queries
     public interface IQueryHandler<in TQuery> 
         where TQuery : IQuery
     {
+#if NET40
         /// <summary>
         /// Executes a query handling logic for a given query.
         /// </summary>
@@ -19,6 +20,7 @@ public interface IQueryHandler<in TQuery>
         /// <param name="query">An instance of a query with a data</param>
         /// <returns>A collection of query results</returns>
         IEnumerable<TResult> Execute<TResult>(TQuery query);
+#endif
 
 #if !NET40
         /// <summary>