diff --git a/tmt/steps/provision/artemis.py b/tmt/steps/provision/artemis.py
index c885e5fb1d..57f8998b1a 100644
--- a/tmt/steps/provision/artemis.py
+++ b/tmt/steps/provision/artemis.py
@@ -199,7 +199,9 @@ class ArtemisGuestData(tmt.steps.provision.GuestSshData):
         normalize=_normalize_log_type)
 
     # Provided by Artemis response
-    guestname: Optional[str] = None
+    guestname: Optional[str] = field(
+        default=None,
+        internal=True)
 
     # Timeouts and deadlines
     provision_timeout: int = field(
diff --git a/tmt/steps/provision/mrack.py b/tmt/steps/provision/mrack.py
index 20a5cbebb1..305154b24a 100644
--- a/tmt/steps/provision/mrack.py
+++ b/tmt/steps/provision/mrack.py
@@ -731,7 +731,9 @@ class BeakerGuestData(tmt.steps.provision.GuestSshData):
         help='Image (distro or "compose" in Beaker terminology) to provision.')
 
     # Provided in Beaker job
-    job_id: Optional[str] = None
+    job_id: Optional[str] = field(
+        default=None,
+        internal=True)
 
     # Timeouts and deadlines
     provision_timeout: int = field(
diff --git a/tmt/steps/provision/podman.py b/tmt/steps/provision/podman.py
index 9cc6c175eb..cd4a92c69f 100644
--- a/tmt/steps/provision/podman.py
+++ b/tmt/steps/provision/podman.py
@@ -48,7 +48,9 @@ class PodmanGuestData(tmt.steps.provision.GuestData):
         option=('-c', '--container'),
         metavar='NAME',
         help='Name or id of an existing container to be used.')
-    network: Optional[str] = field(default=None)
+    network: Optional[str] = field(
+        default=None,
+        internal=True)
 
     pull_attempts: int = field(
         default=DEFAULT_PULL_ATTEMPTS,
diff --git a/tmt/steps/provision/testcloud.py b/tmt/steps/provision/testcloud.py
index c5048867ae..5d4d4c72d8 100644
--- a/tmt/steps/provision/testcloud.py
+++ b/tmt/steps/provision/testcloud.py
@@ -349,8 +349,12 @@ class TestcloudGuestData(tmt.steps.provision.GuestSshData):
         is_flag=True,
         help="List locally available images.")
 
-    image_url: Optional[str] = None
-    instance_name: Optional[str] = None
+    image_url: Optional[str] = field(
+        default=None,
+        internal=True)
+    instance_name: Optional[str] = field(
+        default=None,
+        internal=True)
 
     # TODO: custom handling for two fields - when the formatting moves into
     # field(), this should not be necessary.