diff --git a/extensions/util/makefile.pmk b/extensions/util/makefile.pmk
index b80a9c7bd3c2..fde08af21c81 100644
--- a/extensions/util/makefile.pmk
+++ b/extensions/util/makefile.pmk
@@ -27,3 +27,4 @@
 
 .INCLUDE :  settings.mk
 
+CDEFS += -DNOMINMAX