diff --git a/tools/testing/selftests/vm/Makefile b/tools/testing/selftests/vm/Makefile
index 4c4b1f631ecf61f6e3048d746c23be39ea4f2ef9..077828c889f1377886b98c93349919d55ccb57a2 100644
--- a/tools/testing/selftests/vm/Makefile
+++ b/tools/testing/selftests/vm/Makefile
@@ -7,7 +7,7 @@ BINARIES += transhuge-stress
 
 all: $(BINARIES)
 %: %.c
-	$(CC) $(CFLAGS) -o $@ $^
+	$(CC) $(CFLAGS) -o $@ $^ -lrt
 
 run_tests: all
 	@/bin/sh ./run_vmtests || (echo "vmtests: [FAIL]"; exit 1)