diff --git a/examples/fuzzing_client/Makefile b/examples/fuzzing_client/Makefile
index f62538d8dd..c757815aeb 100644
--- a/examples/fuzzing_client/Makefile
+++ b/examples/fuzzing_client/Makefile
@@ -2,6 +2,8 @@ BOOST_LIBS=boost_system boost_date_time boost_thread boost_regex boost_random
 
 include ../common.mk
 
+LDFLAGS := $(LDFLAGS) -lpthread
+
 fuzzing_client: fuzzing_client.o
 	$(CXX) $(CFLAGS) $^ -o $@ $(LDFLAGS)