diff --git a/t/40_tls13.only.t b/t/40_tls13.only.t
index a65139d..b086a4d 100755
--- a/t/40_tls13.only.t
+++ b/t/40_tls13.only.t
@@ -60,7 +60,7 @@ fi
 # Generate self-signed cert and key if they don't exist
 if [ ! -f "$CERT" ] || [ ! -f "$KEY" ]; then
     echo "Generating self-signed certificate and key..."
-    $OPENSSL req -x509 -newkey rsa:2048 -keyout "$KEY" -out "$CERT" -days 42 -nodes -subj "/CN=localhost" -addext "subjectAltName=DNS:localhost,IP:127.0.0.1" >/dev/null 2>&1
+    $OPENSSL req -x509 -newkey rsa:2048 -keyout "$KEY" -out "$CERT" -days 42 -nodes -subj "/CN=localhost" -addext "subjectAltName=DNS:localhost,IP:127.0.0.1" >/dev/null
 fi
 
 # Start OpenSSL server
@@ -108,6 +108,7 @@ elsif ($pid > 0) {
            close($socket);
            last;
        }
+       sleep 1;
    }
 
    ok($ready, "Server is listening on $listenip:$port");