diff --git a/src/config/NTMakefile.i386_nt40 b/src/config/NTMakefile.i386_nt40
index 16584fe40c..ed1cb1ede9 100644
--- a/src/config/NTMakefile.i386_nt40
+++ b/src/config/NTMakefile.i386_nt40
@@ -77,8 +77,12 @@ INCLUDE = $(AFSDEV_INCLUDE)
 LIB = $(AFSDEV_LIB)
 
 #define used in WinNT/2000 installation and program version display
-AFSPRODUCT_VERSION=1.3.51
-AFSPRODUCT_FILE_VERSION=1,3,5100,0
+AFSPRODUCT_VER_MAJOR=1
+AFSPRODUCT_VER_MINOR=3
+AFSPRODUCT_VER_PATCH=5100
+AFSPRODUCT_VER_BUILD=0
+AFSPRODUCT_VERSION=$(AFSPRODUCT_VER_MAJOR).$(AFSPRODUCT_VER_MINOR).$(AFSPRODUCT_VER_PATCH)
+AFSPRODUCT_FILE_VERSION=$(AFSPRODUCT_VER_MAJOR),$(AFSPRODUCT_VER_MINOR),$(AFSPRODUCT_VER_PATCH),$(AFSPRODUCT_VER_BUILD)
 CELLNAME_DEFAULT=Your Cell Name
 CELLSERVDB_INSTALL=CellServDB.GrandCentral
 CELLSERVDB_WEB=http://grand.central.org/dl/cellservdb/CellServDB