diff --git a/src/util/hwf.cpp b/src/util/hwf.cpp
index a990e6e6d..8c10e3170 100644
--- a/src/util/hwf.cpp
+++ b/src/util/hwf.cpp
@@ -383,7 +383,13 @@ void hwf_manager::round_to_integral(mpf_rounding_mode rm, hwf const & x, hwf & o
 }
 
 void hwf_manager::rem(hwf const & x, hwf const & y, hwf & o) {
+#if defined(_WINDOWS) && _MSC_VER < 1800
+    o.value = fmod(x.value, y.value);
+    if (o.value >= (y.value/2))
+        o.value /= 2.0;
+#else
     o.value = remainder(x.value, y.value);
+#endif
 
 #if 0
     // Here is an x87 alternative if the above makes problems; this may also be faster.