diff --git a/security/coreconf/rules.mk b/security/coreconf/rules.mk
index 6d20aef267b7..e72740ed0b15 100644
--- a/security/coreconf/rules.mk
+++ b/security/coreconf/rules.mk
@@ -284,7 +284,11 @@ get_objs:
 $(LIBRARY): $(BUILT_SRCS) $(OBJS)
 	@$(MAKE_OBJDIR)
 	rm -f $@
+ifeq ($(OS_ARCH), WINNT)
 	$(AR) $(subst /,\\,$(OBJS))
+else
+	$(AR) $(OBJS)
+endif
 	$(RANLIB) $@
 	echo $(BUILT_SRCS) $(OBJS)