diff --git a/win32utils/Configure b/win32utils/Configure
index 99ca203d1b..8c8df49079 100644
--- a/win32utils/Configure
+++ b/win32utils/Configure
@@ -3428,6 +3428,7 @@ exit 0;
 #  --with-dlz-* ?
 #
 # Notes: MSVC versions
+# MSVC 15.0 _MSC_VER == 1910 (VS 2017 RC)
 # MSVC 14.0 _MSC_VER == 1900 (VS 2015)
 # MSVC 12.0 _MSC_VER == 1800 (VS 2013)
 # MSVC 11.0 _MSC_VER == 1700 (VS 2012)