diff --git a/make/so.mk b/make/so.mk
index b1ce4bc0..e457e237 100644
--- a/make/so.mk
+++ b/make/so.mk
@@ -12,7 +12,7 @@ include $(MODDIR)/make/rules.mk
 
 all: $(SHOBJS) $(BUILD_SHOBJS)
 clean: objclean textclean localclean profclean
-install: $(ALL) installso
+install: $(ALL) install_dir_LIB installso
 
 $(BUILD_LIBDIR)/%.so: %.so
 	install -m 755 $< $@