diff --git a/tests/quic/helpers/client.nim b/tests/quic/helpers/client.nim
index 70aec64..1b0754a 100644
--- a/tests/quic/helpers/client.nim
+++ b/tests/quic/helpers/client.nim
@@ -1,3 +1,4 @@
+import std/monotimes
 import ngtcp2
 import ids
 import encrypt
@@ -48,6 +49,7 @@ proc clientDefaultSettings: ngtcp2_settings =
   result.transport_params.stateless_reset_token_present = 0
   result.transport_params.active_connection_id_limit = 8
 
+  result.initial_ts = getMonoTime().ticks.uint
   result.log_printf = log_printf
 
 proc setupClient*(path: ptr ngtcp2_path): ptr ngtcp2_conn =
diff --git a/tests/quic/helpers/server.nim b/tests/quic/helpers/server.nim
index 8470624..79f22c2 100644
--- a/tests/quic/helpers/server.nim
+++ b/tests/quic/helpers/server.nim
@@ -1,3 +1,4 @@
+import std/monotimes
 import ngtcp2
 import encrypt
 import decrypt
@@ -56,6 +57,7 @@ proc serverDefaultSettings: ngtcp2_settings =
   for i in 0..<NGTCP2_STATELESS_RESET_TOKENLEN:
     result.transport_params.stateless_reset_token[i] = uint8(i)
 
+  result.initial_ts = getMonoTime().ticks.uint
   result.log_printf = log_printf
 
 proc setupServer*(path: ptr ngtcp2_path): ptr ngtcp2_conn =
diff --git a/tests/quic/testNgtcp2.nim b/tests/quic/testNgtcp2.nim
index 93a11ad..44993c2 100644
--- a/tests/quic/testNgtcp2.nim
+++ b/tests/quic/testNgtcp2.nim
@@ -1,4 +1,5 @@
 import unittest
+import std/monotimes
 import ngtcp2
 import helpers/server
 import helpers/client