diff --git a/server/failregex.py b/server/failregex.py
index d302370b..bfa50575 100644
--- a/server/failregex.py
+++ b/server/failregex.py
@@ -41,7 +41,7 @@ class Regex:
 		self._matchCache = None
 		# Perform shortcuts expansions.
 		# Replace "<HOST>" with default regular expression for host.
-		regex = regex.replace("<HOST>", "(?:::f{4,6}:)?(?P<host>[\w\-.^_]+)")
+		regex = regex.replace("<HOST>", "(?:::f{4,6}:)?(?P<host>[\w\-.^_]*\w)")
 		if regex.lstrip() == '':
 			raise RegexException("Cannot add empty regex")
 		try:
diff --git a/testcases/servertestcase.py b/testcases/servertestcase.py
index 0a5593e3..07cc373c 100644
--- a/testcases/servertestcase.py
+++ b/testcases/servertestcase.py
@@ -334,9 +334,9 @@ class Transmitter(TransmitterBase):
 				"failed attempt from <HOST> again",
 			],
 			[
-				"user john at (?:::f{4,6}:)?(?P<host>[\w\-.^_]+)",
-				"Admin user login from (?:::f{4,6}:)?(?P<host>[\w\-.^_]+)",
-				"failed attempt from (?:::f{4,6}:)?(?P<host>[\w\-.^_]+) again",
+				"user john at (?:::f{4,6}:)?(?P<host>[\w\-.^_]*\\w)",
+				"Admin user login from (?:::f{4,6}:)?(?P<host>[\w\-.^_]*\\w)",
+				"failed attempt from (?:::f{4,6}:)?(?P<host>[\w\-.^_]*\\w) again",
 			],
 			self.jailName
 		)
@@ -359,7 +359,7 @@ class Transmitter(TransmitterBase):
 			],
 			[
 				"user john",
-				"Admin user login from (?:::f{4,6}:)?(?P<host>[\w\-.^_]+)",
+				"Admin user login from (?:::f{4,6}:)?(?P<host>[\w\-.^_]*\\w)",
 				"Dont match me!",
 			],
 			self.jailName