diff --git a/src/plone/restapi/services/auth/login.py b/src/plone/restapi/services/auth/login.py
index b51962dcb9..21fa9fa6b5 100644
--- a/src/plone/restapi/services/auth/login.py
+++ b/src/plone/restapi/services/auth/login.py
@@ -7,8 +7,11 @@
 from zope.interface import alsoProvides
 from zope import component
 
+import logging
 import plone.protect.interfaces
 
+logger = logging.getLogger(__name__)
+
 
 class Login(Service):
     """Handles login and returns a JSON web token (JWT)."""
@@ -45,10 +48,16 @@ def reply(self):
 
             if plugin is None:
                 self.request.response.setStatus(501)
+                message = "JWT authentication plugin not installed"
+                logger.error(
+                    "%s: %s",
+                    message,
+                    "/".join(uf.getPhysicalPath()),
+                )
                 return dict(
                     error=dict(
                         type="Login failed",
-                        message="JWT authentication plugin not installed.",
+                        message=message,
                     )
                 )