diff --git a/src/Volo.Abp/Volo/Abp/Threading/AsyncHelper.cs b/src/Volo.Abp/Volo/Abp/Threading/AsyncHelper.cs
index 7ce2e52109..a63d7704c2 100644
--- a/src/Volo.Abp/Volo/Abp/Threading/AsyncHelper.cs
+++ b/src/Volo.Abp/Volo/Abp/Threading/AsyncHelper.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Reflection;
 using System.Threading.Tasks;
+using JetBrains.Annotations;
 using Nito.AsyncEx;
 
 namespace Volo.Abp.Threading
@@ -14,7 +15,7 @@ namespace Volo.Abp.Threading
         /// Checks if given method is an async method.
         /// </summary>
         /// <param name="method">A method to check</param>
-        public static bool IsAsyncMethod(MethodInfo method)
+        public static bool IsAsyncMethod([NotNull] this MethodInfo method)
         {
             return method.ReturnType == typeof(Task) ||
                    (method.ReturnType.GetTypeInfo().IsGenericType && method.ReturnType.GetGenericTypeDefinition() == typeof(Task<>));
diff --git a/test/Volo.Abp.Tests/Volo/Abp/Threading/AsyncHelper_Tests.cs b/test/Volo.Abp.Tests/Volo/Abp/Threading/AsyncHelper_Tests.cs
index 69ec91a0cc..bc64357509 100644
--- a/test/Volo.Abp.Tests/Volo/Abp/Threading/AsyncHelper_Tests.cs
+++ b/test/Volo.Abp.Tests/Volo/Abp/Threading/AsyncHelper_Tests.cs
@@ -1,4 +1,6 @@
-using System.Threading.Tasks;
+using System.Reflection;
+using System.Threading.Tasks;
+using JetBrains.Annotations;
 using Shouldly;
 using Xunit;
 
@@ -9,24 +11,49 @@ namespace Volo.Abp.Threading
         [Fact]
         public void RunSync_Test_Without_Return_Value()
         {
-            AsyncHelper.RunSync(MyTaskWithoutReturnValue);
+            AsyncHelper.RunSync(MyTaskWithoutReturnValueAsync);
         }
 
         [Fact]
         public void RunSync_Test_With_Return_Value()
         {
-            AsyncHelper.RunSync(() => MyTaskWithReturnValue(42)).ShouldBe(42);
+            AsyncHelper.RunSync(() => MyTaskWithReturnValueAsync(42)).ShouldBe(42);
         }
 
-        private static async Task MyTaskWithoutReturnValue()
+        [Fact]
+        public void IsAsync_Should_Work()
+        {
+            GetType().GetMethod(
+                "MyTaskWithoutReturnValueAsync",
+                BindingFlags.NonPublic | BindingFlags.Static
+            ).IsAsyncMethod().ShouldBe(true);
+
+            GetType().GetMethod(
+                "MyTaskWithReturnValueAsync",
+                BindingFlags.NonPublic | BindingFlags.Static
+            ).IsAsyncMethod().ShouldBe(true);
+
+            GetType().GetMethod(
+                "MyTaskWithReturnValue2",
+                BindingFlags.NonPublic | BindingFlags.Instance
+            ).IsAsyncMethod().ShouldBe(false);
+        }
+
+        private static async Task MyTaskWithoutReturnValueAsync()
         {
             await Task.Delay(1);
         }
 
-        private static async Task<int> MyTaskWithReturnValue(int aNumber)
+        private static async Task<int> MyTaskWithReturnValueAsync(int aNumber)
         {
             await Task.Delay(1);
             return aNumber;
         }
+
+        [UsedImplicitly]
+        private int MyTaskWithReturnValue2(int aNumber)
+        {
+            return aNumber;
+        }
     }
 }