diff --git a/CHANGELOG.md b/CHANGELOG.md
index 86d1b77dec..bb99b79528 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -33,6 +33,7 @@ The minor version will be incremented upon a breaking change and the patch versi
 
 * lang: Fix IDL `seed` generation for byte string literals. ([#2125](https://github.com/coral-xyz/anchor/pull/2125))
 * ts: Update seeds inference to allow nested user defined structs within the seeds ([#2198](https://github.com/coral-xyz/anchor/pull/2198))
+* event: Fix multiple event listeners with the same name. ([#2165](https://github.com/coral-xyz/anchor/pull/2165))
 
 ## [0.25.0] - 2022-07-05
 
diff --git a/ts/packages/anchor/src/program/event.ts b/ts/packages/anchor/src/program/event.ts
index 872251b39c..75770a80f1 100644
--- a/ts/packages/anchor/src/program/event.ts
+++ b/ts/packages/anchor/src/program/event.ts
@@ -78,7 +78,7 @@ export class EventManager {
     this._listenerIdCount += 1;
 
     // Store the listener into the event map.
-    if (!(eventName in this._eventCallbacks)) {
+    if (!this._eventListeners.has(eventName)) {
       this._eventListeners.set(eventName, []);
     }
     this._eventListeners.set(
@@ -138,6 +138,7 @@ export class EventManager {
     // Update both maps.
     this._eventCallbacks.delete(listener);
     listeners = listeners.filter((l) => l !== listener);
+    this._eventListeners.set(eventName, listeners);
     if (listeners.length === 0) {
       this._eventListeners.delete(eventName);
     }