diff --git a/include/boost/config/compiler/codegear.hpp b/include/boost/config/compiler/codegear.hpp
index c2ee6cd0..bfa4df56 100644
--- a/include/boost/config/compiler/codegear.hpp
+++ b/include/boost/config/compiler/codegear.hpp
@@ -31,6 +31,9 @@
 #if defined(BOOST_HAS_INT128)
 #undef BOOST_HAS_INT128
 #endif
+#if defined(BOOST_HAS_FLOAT128)
+#undef BOOST_HAS_FLOAT128
+#endif
 
 // 32 functions are missing from the current RTL in cwchar, so it really can not be used even if it exists
 
diff --git a/test/boost_has_float128.ipp b/test/boost_has_float128.ipp
index 80b211c1..1c36fd40 100644
--- a/test/boost_has_float128.ipp
+++ b/test/boost_has_float128.ipp
@@ -22,6 +22,10 @@ int test()
    __float128 big_float = 0.0Q;
 #endif
    (void)&big_float;
+   
+   __float128 i(2.00), j(1.00), k;
+   k = i / j;
+   
    return 0;
 }