diff --git a/nmake.opt b/nmake.opt
index 095a04d539..1850f6d98d 100644
--- a/nmake.opt
+++ b/nmake.opt
@@ -159,6 +159,9 @@ GEOS_MSC = 1910
 !ELSEIF "$(_NMAKE_VER)" == "14.11.25508.2"
 GEOS_MSVC = 14.10
 GEOS_MSC = 1910
+!ELSEIF "$(_NMAKE_VER)" == "14.11.25547.0"
+GEOS_MSVC = 14.1
+GEOS_MSC = 1910
 !ELSE
 GEOS_MSVC = 0.0
 GEOS_MSC = 0