diff --git a/raftos/replicator.py b/raftos/replicator.py
index f280e0d..282504f 100644
--- a/raftos/replicator.py
+++ b/raftos/replicator.py
@@ -12,7 +12,6 @@ async def wrapped(self, *args, **kwargs):
             result = await func(self, *args, **kwargs)
 
         return result
-
     return wrapped
 
 
diff --git a/raftos/storage.py b/raftos/storage.py
index 7bcfbf3..280889d 100644
--- a/raftos/storage.py
+++ b/raftos/storage.py
@@ -7,7 +7,7 @@ class FileDict:
     """Persistent dict-like storage on a disk accessible by obj['item_name']"""
 
     def __init__(self, filename, serializer=None):
-        self.filename = filename
+        self.filename = filename.replace(':', '_')
         os.makedirs(os.path.dirname(self.filename), exist_ok=True)
 
         self.cache = {}
@@ -76,7 +76,7 @@ class Log:
     UPDATE_CACHE_EVERY = 5
 
     def __init__(self, node_id, serializer=None):
-        self.filename = os.path.join(config.log_path, '{}.log'.format(node_id))
+        self.filename = os.path.join(config.log_path, '{}.log'.format(node_id.replace(':', '_')))
         os.makedirs(os.path.dirname(self.filename), exist_ok=True)
         open(self.filename, 'a').close()
 
diff --git a/setup.py b/setup.py
index 6a9618a..c48c480 100644
--- a/setup.py
+++ b/setup.py
@@ -3,7 +3,7 @@
 from setuptools import setup
 
 
-__version__ = '0.2.1'
+__version__ = '0.2.3'
 
 short_description = 'Raft replication in Python'
 requirements = [req.strip() for req in open('requirements.txt').readlines()]