1 files changed, 1 insertions, 1 deletions

diff --git a/lib-src/makefile.w32-in b/lib-src/makefile.w32-in
index 07f6170afe4..28f913a4df6 100644
--- a/lib-src/makefile.w32-in
+++ b/lib-src/makefile.w32-in
@@ -21,7 +21,7 @@ ALL = make-docfile hexl ctags etags movemail ebrowse emacsclient
 
 .PHONY: $(ALL)
 
-LOCAL_FLAGS     = -DWINDOWSNT -DDOS_NT -DSTDC_HEADERS=1 -DNO_LDAV=1 \
+LOCAL_FLAGS     = -DWINDOWSNT -DDOS_NT -DNO_LDAV=1 \
                   -DNO_ARCHIVES=1 -DHAVE_CONFIG_H=1 -I../lib \
                   -I../nt/inc -I../src