diff --git a/fail2ban/helpers.py b/fail2ban/helpers.py
index 11dec5aa..3297375b 100644
--- a/fail2ban/helpers.py
+++ b/fail2ban/helpers.py
@@ -45,7 +45,7 @@ if PREFER_ENC.startswith('ANSI_'): # pragma: no cover
 # caused by implicit converting of string/unicode (e. g. `str(u"\uFFFD")` produces an error
 # if default encoding is 'ascii');
 if sys.version_info < (3,): # pragma: 3.x no cover
-  # correct default (global system) encoding (mostly UTF-8):
+	# correct default (global system) encoding (mostly UTF-8):
 	def __resetDefaultEncoding(encoding):
 		global PREFER_ENC
 		ode = sys.getdefaultencoding().upper()
diff --git a/fail2ban/server/database.py b/fail2ban/server/database.py
index 5536f1e6..26e0223d 100644
--- a/fail2ban/server/database.py
+++ b/fail2ban/server/database.py
@@ -40,7 +40,7 @@ logSys = getLogger(__name__)
 
 
 def _json_default(x):
-	"""Avoid errors on types unknow in json-adapters."""
+	"""Avoid errors on types unknown in json-adapters."""
 	if isinstance(x, set):
 		x = list(x)
 	return uni_string(x)