diff --git a/mfbt/tests/TestTypeTraits.cpp b/mfbt/tests/TestTypeTraits.cpp
index f0a5651429..eb412bc54c 100644
--- a/mfbt/tests/TestTypeTraits.cpp
+++ b/mfbt/tests/TestTypeTraits.cpp
@@ -70,8 +70,8 @@ static_assert(!IsPointer<IsPointerTest>::value,
               "IsPointerTest not a pointer");
 static_assert(IsPointer<IsPointerTest*>::value,
               "IsPointerTest* is a pointer");
-static_assert(!IsPointer<bool(IsPointerTest::*)>::value,
-              "bool(IsPointerTest::*) not a pointer");
+static_assert(!IsPointer<bool(IsPointerTest::*)()>::value,
+              "bool(IsPointerTest::*)() not a pointer");
 static_assert(!IsPointer<void(IsPointerTest::*)(void)>::value,
               "void(IsPointerTest::*)(void) not a pointer");