diff --git a/frank/frank.py b/frank/frank.py
index 18a56b6..a46a861 100644
--- a/frank/frank.py
+++ b/frank/frank.py
@@ -7,7 +7,8 @@ import yaml
 class Frank(discord.Client):
     PREFIX = "fr"
 
-    def __init__(self, modules: List["Module"], config_file: str = "frank.yaml"):
+    def __init__(self, modules: List["Module"],
+                 config_file: str = "frank.yaml"):
         super().__init__()
         self._modules = modules
         self._loaded_modules = []
@@ -38,10 +39,10 @@ class Frank(discord.Client):
     async def on_message(self, message: str):
         cmd = shlex.split(message.content.strip())
 
-        if cmd[0] == "fr":
-            matched_mods = (mod for mod in self._loaded_modules if mod.PREFIX == cmd[1])
+        if cmd[0] == self.PREFIX:
+            matched_mods = (mod for mod in self._loaded_modules if
+                            mod.match(cmd[1]))
             module = next(matched_mods, None)
 
             if module:
                 await module.command(cmd[2:])
-
diff --git a/frank/module.py b/frank/module.py
index 702b34d..44a2ae4 100644
--- a/frank/module.py
+++ b/frank/module.py
@@ -2,8 +2,8 @@ from typing import List, Dict
 
 
 class Module:
-    PREFIX = None
-    NAME = None
+    PREFIX = []
+    NAME = ""
 
     def __init__(self, client: "Frank", config: Dict = None):
         self._client = client
@@ -14,3 +14,19 @@ class Module:
 
     async def command(self, cmd: List[str]):
         pass
+
+    @classmethod
+    def match(cls, s: str) -> bool:
+        """
+        Checks wether the given string is a prefix in the module.
+        """
+
+        if cls.PREFIX:
+            if isinstance(cls.PREFIX, list):
+                return s in cls.PREFIX
+
+            else:
+                return s == cls.PREFIX
+
+        else:
+            return False
diff --git a/frank/modules/mcstat.py b/frank/modules/mcstat.py
index 84285c8..37aae9d 100644
--- a/frank/modules/mcstat.py
+++ b/frank/modules/mcstat.py
@@ -30,5 +30,3 @@ class McStat(Module):
 
             else:
                 await channel.send("No one is here bro")
-
-
diff --git a/frank/modules/testmod.py b/frank/modules/testmod.py
index 6a6d876..e87d3bf 100644
--- a/frank/modules/testmod.py
+++ b/frank/modules/testmod.py
@@ -3,7 +3,6 @@ from .. import Module
 
 
 class TestMod(Module):
-    
     PREFIX = "test"
     NAME = "test"