diff --git a/appl/login/Makefile.am b/appl/login/Makefile.am
index 2debe3f3d..410bbbbb1 100644
--- a/appl/login/Makefile.am
+++ b/appl/login/Makefile.am
@@ -32,6 +32,6 @@ LDADD = $(LIB_otp) \
 	$(DBLIB)
 
 $(srcdir)/login_protos.h:
-	cd $(srcdir); perl ../../cf/make-proto.pl -o login_protos.h $(login_SOURCES) || rm -f login_protos.h
+	cd $(srcdir); perl ../../cf/make-proto.pl -o login_protos.h -q -P comment $(login_SOURCES) || rm -f login_protos.h
 
 $(login_OBJECTS): $(srcdir)/login_protos.h