diff --git a/utest/reader.test.cpp b/utest/reader.test.cpp
index fb4a170d..926b6436 100644
--- a/utest/reader.test.cpp
+++ b/utest/reader.test.cpp
@@ -15,7 +15,8 @@ namespace xo {
             std::vector<test_case> s_testcase_v = {
                 {"def foo : f64 = 3.14159265;"},
                 {"def foo : f64 = (3.14159265);"},
-                {"def foo : f64 = 2.0 * 3.14159265;"}
+                //{"def foo : f64 = 2.0 * 3.14159265;"},
+                {"def foo = lambda (x : f64) 3.1415965;"}
             };
         }