diff --git a/make/ytools.mk.in b/make/ytools.mk.in
index 76c81cbf..274cae5c 100644
--- a/make/ytools.mk.in
+++ b/make/ytools.mk.in
@@ -49,3 +49,5 @@ else
 endif
 
 LDFLAGS += -lytools -ldl -pthread
+
+LD_LIB_PATH=$(TOPDIR)/lib