diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6d407f3758..0f0494f351 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -26,6 +26,9 @@ These changes are available on the `master` branch, but have not yet been releas
   ([#3320](https://github.com/Pycord-Development/pycord/pull/3320))
 - Fix `SyntaxWarning` about `return` in a `finally` block raised on Python 3.14+
   ([#3332](https://github.com/Pycord-Development/pycord/pull/3334))
+- Fix `ScheduledEvent.subscriber_count` being incremented instead of decremented when a
+  user leaves the event.
+  ([#3387](https://github.com/Pycord-Development/pycord/pull/3387))
 
 ### Deprecated
 
diff --git a/discord/state.py b/discord/state.py
index 83137e94bb..7acd308708 100644
--- a/discord/state.py
+++ b/discord/state.py
@@ -1763,7 +1763,7 @@ def parse_guild_scheduled_event_user_remove(self, data) -> None:
         if member is not None:
             event = guild.get_scheduled_event(data["guild_scheduled_event_id"])
             if event:
-                event.subscriber_count += 1
+                event.subscriber_count -= 1
                 guild._add_scheduled_event(event)
                 self.dispatch("scheduled_event_user_remove", event, member)