diff --git a/src/NoPELib/expansionsLib.py b/src/NoPELib/expansionsLib.py
index fff75de..bb78b34 100644
--- a/src/NoPELib/expansionsLib.py
+++ b/src/NoPELib/expansionsLib.py
@@ -130,7 +130,7 @@ class serialShocker(Expansion):
         super().__init__(ID, expansionsManager)
         if self.config["COM_port"] not in serialShocker._api:
             self._assignApi()
-        self.shocker = serialShocker._api[self.config["COM_port"]].shocker(["shocker_ID"])
+        self.shocker = serialShocker._api[self.config["COM_port"]].shocker(self.config["shocker_ID"])
 
     def _assignApi(self):
         from pishock import SerialAPI