diff --git a/make/so.mk b/make/so.mk
index fd035efc..f468380e 100644
--- a/make/so.mk
+++ b/make/so.mk
@@ -5,7 +5,7 @@
 
 include $(MODDIR)/make/defs.mk
 ALL += $(SHOBJS)
-LDFLAGS := $(LDFLAGS) -shared
+LDFLAGS += -shared
 include $(MODDIR)/make/rules.mk
 clean: objclean textclean localclean
 install: $(ALL) installso