diff --git a/include/Makefile.in b/include/Makefile.in
index c55919ba8e2..2dc8a689b7f 100644
--- a/include/Makefile.in
+++ b/include/Makefile.in
@@ -70,6 +70,7 @@ WINDOWS_INCLUDES = \
 	$(WINDOWS_IDL_INCLUDES) \
 	accctrl.h \
 	aclapi.h \
+	adshlp.h \
 	advpub.h \
 	appmgmt.h \
 	audevcod.h \