diff --git a/borgmatic/hooks/cronhub.py b/borgmatic/hooks/cronhub.py
index 3b95d3e4..e0c49689 100644
--- a/borgmatic/hooks/cronhub.py
+++ b/borgmatic/hooks/cronhub.py
@@ -13,7 +13,9 @@ MONITOR_STATE_TO_CRONHUB = {
 }
 
 
-def initialize_monitor(ping_url, config_filename, monitoring_log_level, dry_run):
+def initialize_monitor(
+    ping_url, config_filename, monitoring_log_level, dry_run
+):  # pragma: no cover
     '''
     No initialization is necessary for this monitor.
     '''
diff --git a/borgmatic/hooks/cronitor.py b/borgmatic/hooks/cronitor.py
index c1687708..aa3e4fff 100644
--- a/borgmatic/hooks/cronitor.py
+++ b/borgmatic/hooks/cronitor.py
@@ -13,7 +13,9 @@ MONITOR_STATE_TO_CRONITOR = {
 }
 
 
-def initialize_monitor(ping_url, config_filename, monitoring_log_level, dry_run):
+def initialize_monitor(
+    ping_url, config_filename, monitoring_log_level, dry_run
+):  # pragma: no cover
     '''
     No initialization is necessary for this monitor.
     '''
diff --git a/borgmatic/hooks/healthchecks.py b/borgmatic/hooks/healthchecks.py
index 72ea943d..ceeee257 100644
--- a/borgmatic/hooks/healthchecks.py
+++ b/borgmatic/hooks/healthchecks.py
@@ -65,7 +65,9 @@ def format_buffered_logs_for_payload():
     return payload
 
 
-def initialize_monitor(ping_url_or_uuid, config_filename, monitoring_log_level, dry_run):
+def initialize_monitor(
+    ping_url_or_uuid, config_filename, monitoring_log_level, dry_run
+):  # pragma: no cover
     '''
     Add a handler to the root logger that stores in memory the most recent logs emitted. That
     way, we can send them all to Healthchecks upon a finish or failure state.
diff --git a/borgmatic/hooks/pagerduty.py b/borgmatic/hooks/pagerduty.py
index 01033c62..77093471 100644
--- a/borgmatic/hooks/pagerduty.py
+++ b/borgmatic/hooks/pagerduty.py
@@ -12,7 +12,9 @@ logger = logging.getLogger(__name__)
 EVENTS_API_URL = 'https://events.pagerduty.com/v2/enqueue'
 
 
-def initialize_monitor(integration_key, config_filename, monitoring_log_level, dry_run):
+def initialize_monitor(
+    integration_key, config_filename, monitoring_log_level, dry_run
+):  # pragma: no cover
     '''
     No initialization is necessary for this monitor.
     '''