diff --git a/lib/base/test_base.c b/lib/base/test_base.c
index fba675cf4..a3d24661e 100644
--- a/lib/base/test_base.c
+++ b/lib/base/test_base.c
@@ -238,8 +238,8 @@ test_json(void)
 	"{ \"k1\" : \"s1\", \"k2\" : \"s2\" }",
 	"{ \"k1\" : [\"s1\", \"s2\", \"s3\"], \"k2\" : \"s3\" }",
 	"{ \"k1\" : {\"k2\":\"s1\",\"k3\":\"s2\",\"k4\":\"s3\"}, \"k5\" : \"s4\" }",
-	"[ \"v1\", \"v2\", [\"v3\",\"v4\",[\"v 5\",\" v 7 \"]], -123456789, "
-	    "null, true, false, 123456789, \"\"]",
+	("[ \"v1\", \"v2\", [\"v3\",\"v4\",[\"v 5\",\" v 7 \"]], -123456789, "
+	    "null, true, false, 123456789, \"\"]"),
 	" -1"
     };
     char *s;