diff --git a/NEWS b/NEWS
index 1de4156c..a3e5d83d 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,7 @@
 1.5.11.dev0
  * #341: Add "temporary_directory" option for changing Borg's temporary directory.
  * #352: Lock down systemd security settings in sample systemd service file.
+ * #355: Fix traceback when a database hook value is null in a configuration file.
 
 1.5.10
  * #347: Add hooks that run for the "extract" action: "before_extract" and "after_extract".
diff --git a/borgmatic/commands/borgmatic.py b/borgmatic/commands/borgmatic.py
index a6df97b4..1f41f4e5 100644
--- a/borgmatic/commands/borgmatic.py
+++ b/borgmatic/commands/borgmatic.py
@@ -658,7 +658,9 @@ def collect_configuration_run_summary_logs(configs, arguments):
 
     if not configs:
         yield from make_error_log_records(
-            '{}: No configuration files found'.format(' '.join(arguments['global'].config_paths))
+            '{}: No valid configuration files found'.format(
+                ' '.join(arguments['global'].config_paths)
+            )
         )
         return
 
diff --git a/borgmatic/hooks/dispatch.py b/borgmatic/hooks/dispatch.py
index 6c05cad9..6fb2c808 100644
--- a/borgmatic/hooks/dispatch.py
+++ b/borgmatic/hooks/dispatch.py
@@ -58,5 +58,5 @@ def call_hooks(function_name, hooks, log_prefix, hook_names, *args, **kwargs):
     return {
         hook_name: call_hook(function_name, hooks, log_prefix, hook_name, *args, **kwargs)
         for hook_name in hook_names
-        if hook_name in hooks
+        if hooks.get(hook_name)
     }
diff --git a/tests/unit/hooks/test_dispatch.py b/tests/unit/hooks/test_dispatch.py
index ec163d81..7224e194 100644
--- a/tests/unit/hooks/test_dispatch.py
+++ b/tests/unit/hooks/test_dispatch.py
@@ -58,7 +58,7 @@ def test_call_hooks_calls_each_hook_and_collects_return_values():
     assert return_values == expected_return_values
 
 
-def test_call_hooks_calls_skips_return_values_for_unconfigured_hooks():
+def test_call_hooks_calls_skips_return_values_for_missing_hooks():
     hooks = {'super_hook': flexmock()}
     expected_return_values = {'super_hook': flexmock()}
     flexmock(module).should_receive('call_hook').and_return(expected_return_values['super_hook'])
@@ -66,3 +66,13 @@ def test_call_hooks_calls_skips_return_values_for_unconfigured_hooks():
     return_values = module.call_hooks('do_stuff', hooks, 'prefix', ('super_hook', 'other_hook'), 55)
 
     assert return_values == expected_return_values
+
+
+def test_call_hooks_calls_skips_return_values_for_null_hooks():
+    hooks = {'super_hook': flexmock(), 'other_hook': None}
+    expected_return_values = {'super_hook': flexmock()}
+    flexmock(module).should_receive('call_hook').and_return(expected_return_values['super_hook'])
+
+    return_values = module.call_hooks('do_stuff', hooks, 'prefix', ('super_hook', 'other_hook'), 55)
+
+    assert return_values == expected_return_values