diff --git a/fabcal/calendar_client.py b/fabcal/calendar_client.py
index b8d7d63..cde581e 100644
--- a/fabcal/calendar_client.py
+++ b/fabcal/calendar_client.py
@@ -21,6 +21,9 @@ class ConfiguredCalendar(NamedTuple):
     name: str
     url: str
     default_color: str = None
+    overwrite_summary: str = None
+    overwrite_description: str = None
+    overwrite_location: str = None
 
 
 class CalendarClient:
@@ -84,6 +87,11 @@ class CombinedCalendarClient:
                 except KeyError:
                     default_color = None
 
+            # if the user wishes to overwrite some data on every item in a calendar, we should do so
+            overwrite_summary = configured_calendar.overwrite_summary
+            overwrite_description = configured_calendar.overwrite_description
+            overwrite_location = configured_calendar.overwrite_location
+
             # we don't copy anything but events from the
             for event in cal.walk("VEVENT"):
                 # if no color has been configured in the event, we
@@ -91,6 +99,15 @@ class CombinedCalendarClient:
                 if "color" not in event:
                     event["color"] = default_color
 
+                if overwrite_summary:
+                    event["SUMMARY"] = overwrite_summary
+
+                if overwrite_description:
+                    event["DESCRIPTION"] = overwrite_description
+
+                if overwrite_location:
+                    event["LOCATION"] = overwrite_location
+
                 combined_calendar.add_component(event)
 
         return combined_calendar