From 4a44865a8c22adb9c55d5c37a81ee46ebc68228c Mon Sep 17 00:00:00 2001
From: Richard Moore <github@ricmoo.com>
Date: Sun, 18 Apr 2021 19:23:27 -0400
Subject: [PATCH] Fixed run-checking non-filter Contract events (#1458).

---
 packages/contracts/src.ts/index.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/contracts/src.ts/index.ts b/packages/contracts/src.ts/index.ts
index 89c86c5f1..0d82660fc 100644
--- a/packages/contracts/src.ts/index.ts
+++ b/packages/contracts/src.ts/index.ts
@@ -917,7 +917,7 @@ export class BaseContract {
 
             // If we have a poller for this, remove it
             const emit = this._wrappedEmits[runningEvent.tag];
-            if (emit) {
+            if (emit && runningEvent.filter) {
                 this.provider.off(runningEvent.filter, emit);
                 delete this._wrappedEmits[runningEvent.tag];
             }