diff --git a/doc/source/admin/report.txt b/doc/source/admin/report.txt
index 1293047f7a..c3cfdbf3e4 100644
--- a/doc/source/admin/report.txt
+++ b/doc/source/admin/report.txt
@@ -273,7 +273,6 @@ default:
     no-raid
   enabled_vendor_interfaces =
     no-vendor
-  fatal_exception_format_errors = False
   force_raw_images = True
   graceful_shutdown_timeout = 60
   grub_config_template = /opt/stack/ironic/ironic/common/grub_conf.template
diff --git a/ironic/conf/default.py b/ironic/conf/default.py
index 9621c2db56..20a06846b7 100644
--- a/ironic/conf/default.py
+++ b/ironic/conf/default.py
@@ -152,18 +152,9 @@ driver_opts = [
 ]
 
 exc_log_opts = [
-    cfg.BoolOpt('fatal_exception_format_errors',
-                default=False,
-                help=_('Used if there is a formatting error when generating '
-                       'an exception message (a programming error). If True, '
-                       'raise an exception; if False, use the unformatted '
-                       'message.'),
-                deprecated_for_removal=True,
-                deprecated_reason=_('Same option in the ironic_lib section '
-                                    'should be used instead.')),
     cfg.IntOpt('log_in_db_max_size', default=4096,
                help=_('Max number of characters of any node '
-                      'last_error/maintenance_reason pushed to database.')),
+                      'last_error/maintenance_reason pushed to database.'))
 ]
 
 hash_opts = [
diff --git a/ironic/tests/base.py b/ironic/tests/base.py
index e7537efbdd..957fc88cc5 100644
--- a/ironic/tests/base.py
+++ b/ironic/tests/base.py
@@ -120,7 +120,6 @@ class TestCase(oslo_test_base.BaseTestCase):
     def _set_config(self):
         self.cfg_fixture = self.useFixture(config_fixture.Config(CONF))
         self.config(use_stderr=False,
-                    fatal_exception_format_errors=True,
                     tempdir=tempfile.tempdir)
         self.config(cleaning_network=uuidutils.generate_uuid(),
                     group='neutron')
diff --git a/releasenotes/notes/del-fatal_exception_format_errors-f63b15c8aa460dff.yaml b/releasenotes/notes/del-fatal_exception_format_errors-f63b15c8aa460dff.yaml
new file mode 100644
index 0000000000..54f2dd31af
--- /dev/null
+++ b/releasenotes/notes/del-fatal_exception_format_errors-f63b15c8aa460dff.yaml
@@ -0,0 +1,5 @@
+---
+upgrade:
+  - |
+    The ``[DEFAULT]fatal_exception_format_errors`` was removed,
+    use ``[ironic_lib]fatal_exception_format_errors`` instead.