diff --git a/tests/unit/unit2600.c b/tests/unit/unit2600.c
index 1ff7740f7f..ce41427991 100644
--- a/tests/unit/unit2600.c
+++ b/tests/unit/unit2600.c
@@ -364,7 +364,7 @@ static struct test_case TEST_CASES[] = {
   /* TIMEOUT_MS,        FAIL_MS      CREATED    DURATION     Result, HE_PREF */
   /* CNCT   HE          v4    v6     v4 v6      MIN   MAX */
   { 1, TURL, "test.com:123:192.0.2.1", CURL_IPRESOLVE_WHATEVER,
-    250,  150,        200,  200,    1,  0,      200,  500,  R_FAIL, NULL },
+    250,  150,        200,  200,    1,  0,      200,  600,  R_FAIL, NULL },
   /* 1 ipv4, fails after ~200ms, reports COULDNT_CONNECT   */
   { 2, TURL, "test.com:123:192.0.2.1,192.0.2.2", CURL_IPRESOLVE_WHATEVER,
     500,  150,        200,  200,    2,  0,      400,  800,  R_FAIL, NULL },