diff --git a/src/config/NTMakefile.amd64_w2k b/src/config/NTMakefile.amd64_w2k
index bb92975ae4..763a07c5ec 100644
--- a/src/config/NTMakefile.amd64_w2k
+++ b/src/config/NTMakefile.amd64_w2k
@@ -214,6 +214,7 @@ afscdefs =\
     	-DREGISTER_POWER_NOTIFICATIONS \
     	-DAFS_AFSDB_ENV \
     	-DAFS_FREELANCE_CLIENT \
+        -DAFS_64BITPOINTER_ENV \
     	-DAFS_64BIT_ENV \
 	-DAFS_64BIT_CLIENT \
 	-DAFS_LARGEFILE_ENV \