diff --git a/core/tests/Makefile b/core/tests/Makefile
index 14fc4dfe..5b79a9d7 100644
--- a/core/tests/Makefile
+++ b/core/tests/Makefile
@@ -14,6 +14,7 @@ DEPS=$(SRCS:.cpp=.d)
 
 CPPFLAGS += -I.. -DNOMAIN
 
+EXTRA_LDFLAGS += -lresolv
 
 .PHONY: all
 all: ../../Makefile.defs