diff --git a/octoprint_reservations/google_calendar.py b/octoprint_reservations/google_calendar.py
index 2ae403e..a4c434f 100644
--- a/octoprint_reservations/google_calendar.py
+++ b/octoprint_reservations/google_calendar.py
@@ -22,6 +22,10 @@ class CalendarService:
         creds = self._authenticate()
         self.service = build("calendar", "v3", credentials=creds)
 
+    @staticmethod
+    def encode_event_id(id):
+        return b16encode(id.encode("ascii")).decode("ascii").lower().rstrip("=")
+
     def _authenticate(self) -> Credentials:
         creds = None
         # The file token.json stores the user's access and refresh tokens, and is
@@ -47,8 +51,7 @@ class CalendarService:
     def insert_or_update_event(
         self, calendar_id: str, id: str, title: str, start: datetime, end: datetime
     ):
-        event_id = b16encode(id.encode("ascii")).decode("ascii").lower().rstrip("=")
-        print(event_id)
+        event_id = self.encode_event_id(id)
         event = {
             "id": event_id,
             "summary": title,