diff --git a/jail2ban/__init__.py b/jail2ban/__init__.py
index adbff1e..9491bf6 100644
--- a/jail2ban/__init__.py
+++ b/jail2ban/__init__.py
@@ -94,7 +94,7 @@ def create_app():
                              verbose=True)
         result = [entry.groupdict() for entry in
                   re.finditer(_PFCTL_TABLE_PAT,
-                              '\n'.join(res),
+                              '\n'.join([x.decode('ascii') for x in res]),
                               re.MULTILINE|re.VERBOSE)]
 
         return jsonify({'anchor': f'f2b-jail/{remote_user}',