diff --git a/GrobExp.Compiler.Tests/Test.cs b/GrobExp.Compiler.Tests/Test.cs
index fde0191..248d2d7 100644
--- a/GrobExp.Compiler.Tests/Test.cs
+++ b/GrobExp.Compiler.Tests/Test.cs
@@ -24,7 +24,8 @@ public void TestNullable()
         public void TestLambdaExpressionCreator()
         {
             Expression<Func<string, string>> e = x => x.Substring(1, 2);
-            LambdaExpressionCreator.Create<Func<string, string>>(e.Body, e.Parameters.ToArray());
+            var lambda = LambdaExpressionCreator.Create<Func<string, string>>(e.Body, e.Parameters.ToArray());
+            Assert.That(lambda.Compile()("abcd"), Is.EqualTo("bc"));
         }
 
         [Test]
diff --git a/GrobExp.Compiler/LambdaExpressionCreator.cs b/GrobExp.Compiler/LambdaExpressionCreator.cs
index f7b492c..c5fed5d 100644
--- a/GrobExp.Compiler/LambdaExpressionCreator.cs
+++ b/GrobExp.Compiler/LambdaExpressionCreator.cs
@@ -69,7 +69,7 @@ private static LambdaCreateDelegate BuildLambdaFactory(Type delegateType)
                 il.Ldarg(1);
                 il.Ldarg(2);
                 il.Ldarg(3);
-                il.Callnonvirt(resultType.GetMethods(BindingFlags.NonPublic | BindingFlags.Static).Single(x => x.Name == "Create"));
+                il.Callnonvirt(resultType.GetMethod("Create", BindingFlags.NonPublic | BindingFlags.Static));
                 il.Ret();
             }
             return (LambdaCreateDelegate)method.CreateDelegate(typeof(LambdaCreateDelegate));