diff --git a/lib/libldns/Makefile b/lib/libldns/Makefile
index 14dc9f9da1ac..042b4e046a0d 100644
--- a/lib/libldns/Makefile
+++ b/lib/libldns/Makefile
@@ -1,7 +1,7 @@
 # $FreeBSD$
 
 # Vendor sources and generated files
-LDNSDIR = ${.CURDIR}/../../contrib/ldns
+LDNSDIR = ${SRCTOP}/contrib/ldns
 
 PACKAGE=lib${LIB}
 .PATH: ${LDNSDIR} ${LDNSDIR}/compat