--- a/mfbt/tests/TestTypeTraits.cpp
+++ b/mfbt/tests/TestTypeTraits.cpp
@@ -66,17 +66,17 @@ static_assert(IsPointer<bool**>::value,
               "bool** is a pointer");
 static_assert(IsPointer<void (*)(void)>::value,
               "void (*)(void) is a pointer");
 struct IsPointerTest { bool m; void f(); };
 static_assert(!IsPointer<IsPointerTest>::value,
               "IsPointerTest not a pointer");
 static_assert(IsPointer<IsPointerTest*>::value,
               "IsPointerTest* is a pointer");
-static_assert(!IsPointer<bool(IsPointerTest::*)>::value,
+static_assert(!IsPointer<bool(IsPointerTest::*)()>::value,
               "bool(IsPointerTest::*) not a pointer");
 static_assert(!IsPointer<void(IsPointerTest::*)(void)>::value,
               "void(IsPointerTest::*)(void) not a pointer");
 
 static_assert(!IsLvalueReference<bool>::value,
               "bool not an lvalue reference");
 static_assert(!IsLvalueReference<bool*>::value,
               "bool* not an lvalue reference");