diff --git a/nodeman/nodes.py b/nodeman/nodes.py
index 029e7b0..6db2d65 100644
--- a/nodeman/nodes.py
+++ b/nodeman/nodes.py
@@ -60,7 +60,7 @@ def process_csr(csr: x509.CertificateSigningRequest, name: str, request: Request
     try:
         ca_response = request.app.ca_client.sign_csr(csr, name)
     except Exception as exc:
-        logger.error("Failed to processes CSR for %s", name)
+        logger.error("Failed to process CSR for %s", name)
         raise HTTPException(status.HTTP_500_INTERNAL_SERVER_ERROR, detail="Error issuing certificate") from exc
 
     x509_certificate = "".join(
@@ -70,7 +70,7 @@ def process_csr(csr: x509.CertificateSigningRequest, name: str, request: Request
     x509_certificate_serial_number = ca_response.cert_chain[0].serial_number
 
     logger.info(
-        "Issuer certificate for name=%s serial=%d",
+        "Issued certificate for name=%s serial=%d",
         name,
         x509_certificate_serial_number,
         extra={"nodename": name, "x509_certificate_serial_number": x509_certificate_serial_number},
@@ -284,7 +284,7 @@ async def enroll_node(
 @router.post(
     "/api/v1/node/{name}/renew",
     responses={
-        200: {"model": NodeConfiguration},
+        200: {"model": NodeCertificate},
     },
     tags=["client"],
 )
diff --git a/tests/test_api.py b/tests/test_api.py
index bdb4876..6c9ea5c 100644
--- a/tests/test_api.py
+++ b/tests/test_api.py
@@ -21,7 +21,7 @@
 from nodeman.server import NodemanServer
 from nodeman.settings import Settings
 from nodeman.x509 import generate_x509_csr
-from tests.utils import CaTestClient
+from tests.utils import CaTestClient, rekey
 
 ADMIN_TEST_NODE_COUNT = 100
 BACKEND_CREDENTIALS = ("username", "password")
@@ -39,15 +39,6 @@ def get_test_client() -> TestClient:
     return TestClient(app)
 
 
-def regenerate(key: JWK) -> JWK:
-    """Generate similar key"""
-    params = {}
-    for param in ["kty", "crv", "size"]:
-        if param in key:
-            params[param] = key.get(param)
-    return JWK.generate(**params)
-
-
 class FailedToCreateNode(RuntimeError):
     pass
 
@@ -153,7 +144,7 @@ def _test_enroll(data_key: JWK, x509_key: PrivateKey, requested_name: str | None
     payload = {"x509_csr": x509_csr}
 
     jws = JWS(payload=json.dumps(payload))
-    jws.add_signature(key=regenerate(data_key), alg=data_alg, protected={"alg": data_alg})
+    jws.add_signature(key=rekey(data_key), alg=data_alg, protected={"alg": data_alg})
     renew_request = jws.serialize()
 
     response = client.post(f"{node_url}/renew", json=renew_request)
diff --git a/tests/utils.py b/tests/utils.py
index 314bec9..dddab5d 100644
--- a/tests/utils.py
+++ b/tests/utils.py
@@ -4,10 +4,25 @@
 from cryptography.hazmat.primitives import hashes
 from cryptography.hazmat.primitives.asymmetric import ec
 from cryptography.x509.oid import NameOID
+from jwcrypto.common import base64url_decode
+from jwcrypto.jwk import JWK
 
 from nodeman.x509 import CertificateAuthorityClient, CertificateInformation
 
 
+def rekey(key: JWK) -> JWK:
+    """Generate similar key"""
+    params = {param: key.get(param) for param in ["kty", "crv"] if param in key}
+    match key.get("kty"):
+        case "RSA":
+            params["size"] = key._get_public_key().key_size
+        case "oct":
+            params["size"] = len(base64url_decode(key.k)) * 8
+        case _:
+            pass
+    return JWK.generate(**params)
+
+
 class CaTestClient(CertificateAuthorityClient):
     def __init__(self):
         self.ca_name = "ca.example.com"