diff --git a/src/DecryptionFailureTracker.ts b/src/DecryptionFailureTracker.ts
index cc336cc5cef..548555cd1dd 100644
--- a/src/DecryptionFailureTracker.ts
+++ b/src/DecryptionFailureTracker.ts
@@ -158,10 +158,16 @@ export class DecryptionFailureTracker {
      *
      * @param {function} errorCodeMapFn The function used to map decryption failure reason  codes to the
      * `trackedErrorCode`.
+     *
+     * @param {boolean} checkReportedEvents Check if we have already reported an event.
+     * Defaults to `true`. This is only used for tests, to avoid possible false positives from
+     * the Bloom filter. This should be set to `false` for all tests except for those
+     * that specifically test the `reportedEvents` functionality.
      */
     private constructor(
         private readonly fn: TrackingFn,
         private readonly errorCodeMapFn: ErrCodeMapFn,
+        private readonly checkReportedEvents: boolean = true,
     ) {
         if (!fn || typeof fn !== "function") {
             throw new Error("DecryptionFailureTracker requires tracking function");
@@ -214,7 +220,7 @@ export class DecryptionFailureTracker {
         const eventId = e.getId()!;
 
         // if it's already reported, we don't need to do anything
-        if (this.reportedEvents.has(eventId)) {
+        if (this.reportedEvents.has(eventId) && this.checkReportedEvents) {
             return;
         }
 
@@ -240,7 +246,7 @@ export class DecryptionFailureTracker {
         const eventId = e.getId()!;
 
         // if it's already reported, we don't need to do anything
-        if (this.reportedEvents.has(eventId)) {
+        if (this.reportedEvents.has(eventId) && this.checkReportedEvents) {
             return;
         }
 
diff --git a/test/DecryptionFailureTracker-test.ts b/test/DecryptionFailureTracker-test.ts
index 06fe22ce54a..ca8c4b36606 100644
--- a/test/DecryptionFailureTracker-test.ts
+++ b/test/DecryptionFailureTracker-test.ts
@@ -52,6 +52,7 @@ describe("DecryptionFailureTracker", function () {
         const tracker = new DecryptionFailureTracker(
             () => count++,
             () => "UnknownError",
+            false,
         );
 
         tracker.addVisibleEvent(failedDecryptionEvent);
@@ -78,6 +79,7 @@ describe("DecryptionFailureTracker", function () {
                 reportedRawCode = rawCode;
             },
             () => "UnknownError",
+            false,
         );
 
         tracker.addVisibleEvent(failedDecryptionEvent);
@@ -101,6 +103,7 @@ describe("DecryptionFailureTracker", function () {
         const tracker = new DecryptionFailureTracker(
             () => count++,
             () => "UnknownError",
+            false,
         );
 
         eventDecrypted(tracker, failedDecryptionEvent, Date.now());
@@ -121,6 +124,7 @@ describe("DecryptionFailureTracker", function () {
                 propertiesByErrorCode[errorCode] = properties;
             },
             (error: string) => error,
+            false,
         );
 
         // use three different errors so that we can distinguish the reports
@@ -161,6 +165,7 @@ describe("DecryptionFailureTracker", function () {
                 expect(true).toBe(false);
             },
             () => "UnknownError",
+            false,
         );
 
         tracker.addVisibleEvent(decryptedEvent);
@@ -189,6 +194,7 @@ describe("DecryptionFailureTracker", function () {
                     expect(true).toBe(false);
                 },
                 () => "UnknownError",
+                false,
             );
 
             eventDecrypted(tracker, decryptedEvent, Date.now());
@@ -216,6 +222,7 @@ describe("DecryptionFailureTracker", function () {
         const tracker = new DecryptionFailureTracker(
             () => count++,
             () => "UnknownError",
+            false,
         );
 
         tracker.addVisibleEvent(decryptedEvent);
@@ -379,6 +386,7 @@ describe("DecryptionFailureTracker", function () {
             (errorCode: string) => (counts[errorCode] = (counts[errorCode] || 0) + 1),
             (error: DecryptionFailureCode) =>
                 error === DecryptionFailureCode.UNKNOWN_ERROR ? "UnknownError" : "OlmKeysNotSentError",
+            false,
         );
 
         const decryptedEvent1 = await createFailedDecryptionEvent({
@@ -416,6 +424,7 @@ describe("DecryptionFailureTracker", function () {
         const tracker = new DecryptionFailureTracker(
             (errorCode: string) => (counts[errorCode] = (counts[errorCode] || 0) + 1),
             (_errorCode: string) => "OlmUnspecifiedError",
+            false,
         );
 
         const decryptedEvent1 = await createFailedDecryptionEvent({
@@ -450,6 +459,7 @@ describe("DecryptionFailureTracker", function () {
         const tracker = new DecryptionFailureTracker(
             (errorCode: string) => (counts[errorCode] = (counts[errorCode] || 0) + 1),
             (errorCode: string) => Array.from(errorCode).reverse().join(""),
+            false,
         );
 
         const decryptedEvent = await createFailedDecryptionEvent({
@@ -475,6 +485,7 @@ describe("DecryptionFailureTracker", function () {
             },
             // @ts-ignore access to private member
             DecryptionFailureTracker.instance.errorCodeMapFn,
+            false,
         );
 
         const now = Date.now();
@@ -543,6 +554,7 @@ describe("DecryptionFailureTracker", function () {
                 propertiesByErrorCode[errorCode] = properties;
             },
             (error: string) => error,
+            false,
         );
 
         // use three different errors so that we can distinguish the reports
@@ -597,6 +609,7 @@ describe("DecryptionFailureTracker", function () {
                 errorCount++;
             },
             (error: string) => error,
+            false,
         );
 
         // Calling .start will start some intervals.  This test shouldn't run
@@ -638,6 +651,7 @@ describe("DecryptionFailureTracker", function () {
                 propertiesByErrorCode[errorCode] = properties;
             },
             (error: string) => error,
+            false,
         );
 
         // @ts-ignore access to private method
@@ -710,6 +724,7 @@ describe("DecryptionFailureTracker", function () {
                 failure = properties;
             },
             () => "UnknownError",
+            false,
         );
 
         tracker.addVisibleEvent(failedDecryptionEvent);