diff --git a/src/shrpx.cc b/src/shrpx.cc
index 184125f0..62c0abc0 100644
--- a/src/shrpx.cc
+++ b/src/shrpx.cc
@@ -1549,7 +1549,17 @@ void fill_default_config(Config *config) {
   }
 
   auto &quicconf = config->quic;
-  { quicconf.timeout.idle = 30_s; }
+  {
+    quicconf.timeout.idle = 30_s;
+
+    auto &stateless_resetconf = quicconf.stateless_reset;
+    // TODO Find better place to do this and error handling.
+    if (RAND_bytes(stateless_resetconf.secret.data(),
+                   stateless_resetconf.secret.size()) != 1) {
+      LOG(FATAL) << "Unable to generate stateless reset secret";
+      exit(EXIT_FAILURE);
+    }
+  }
 
   auto &loggingconf = config->logging;
   {