diff --git a/src/Compilers/CSharp/Test/Semantic/Semantics/BindingAsyncTasklikeMoreTests.cs b/src/Compilers/CSharp/Test/Semantic/Semantics/BindingAsyncTasklikeMoreTests.cs
index 8197779582e60..28ab05cc7959a 100644
--- a/src/Compilers/CSharp/Test/Semantic/Semantics/BindingAsyncTasklikeMoreTests.cs
+++ b/src/Compilers/CSharp/Test/Semantic/Semantics/BindingAsyncTasklikeMoreTests.cs
@@ -647,9 +647,23 @@ public void AwaitUnsafeOnCompleted<TAwaiter, TStateMachine>(ref TAwaiter awaiter
 namespace System.Runtime.CompilerServices { class AsyncMethodBuilderAttribute : System.Attribute { public AsyncMethodBuilderAttribute(System.Type t) { } } }
 ";
             var compilation = CreateCompilationWithMscorlib461(source, references: new MetadataReference[] { CSharpRef, SystemCoreRef });
-            var verifier = CompileAndVerify(
-                compilation,
-                expectedSignatures: new[]
+            var expectedSignatures = ExecutionConditionUtil.IsMonoCore
+                ? new[]
+                {
+                    Signature(
+                        "C+<>c__DisplayClass2_0",
+                        "<M>b__0",
+                        ".method [System.Runtime.CompilerServices.AsyncStateMachineAttribute(C+<>c__DisplayClass2_0+<<M>b__0>d)] assembly hidebysig instance [System.Runtime.CompilerServices.DynamicAttribute(System.Boolean[])] MyTask`1[System.Object] <M>b__0() cil managed"),
+                    Signature(
+                        "C+<>c__DisplayClass2_0",
+                        "<M>b__1",
+                        ".method [System.Runtime.CompilerServices.AsyncStateMachineAttribute(C+<>c__DisplayClass2_0+<<M>b__1>d)] assembly hidebysig instance [System.Runtime.CompilerServices.DynamicAttribute(System.Boolean[])] MyTask`1[System.Object[]] <M>b__1() cil managed"),
+                    Signature(
+                        "C+<>c__DisplayClass2_0",
+                        "<M>b__2",
+                        ".method [System.Runtime.CompilerServices.AsyncStateMachineAttribute(C+<>c__DisplayClass2_0+<<M>b__2>d)] assembly hidebysig instance [System.Runtime.CompilerServices.DynamicAttribute(System.Boolean[])] MyTask`1[System.Object] <M>b__2() cil managed"),
+                }
+                : new[]
                 {
                     Signature(
                         "C+<>c__DisplayClass2_0",
@@ -663,7 +677,12 @@ namespace System.Runtime.CompilerServices { class AsyncMethodBuilderAttribute :
                         "C+<>c__DisplayClass2_0",
                         "<M>b__2",
                         ".method [System.Runtime.CompilerServices.AsyncStateMachineAttribute(C+<>c__DisplayClass2_0+<<M>b__2>d)] assembly hidebysig instance [System.Runtime.CompilerServices.DynamicAttribute(System.Collections.ObjectModel.ReadOnlyCollection`1[System.Reflection.CustomAttributeTypedArgument])] MyTask`1[System.Object] <M>b__2() cil managed"),
-                });
+                };
+
+            var verifier = CompileAndVerify(
+                compilation,
+                expectedSignatures: expectedSignatures);
+
             verifier.VerifyDiagnostics();
         }