diff --git a/packages/backend/src/server/api/stream/channels/global-timeline.ts b/packages/backend/src/server/api/stream/channels/global-timeline.ts
index 2257be2b8..f2aca7e3c 100644
--- a/packages/backend/src/server/api/stream/channels/global-timeline.ts
+++ b/packages/backend/src/server/api/stream/channels/global-timeline.ts
@@ -23,7 +23,7 @@ export default class extends Channel {
 				return;
 		}
 
-		this.withReplies = params.withReplies as boolean;
+		this.withReplies = params != null ? !!params.withReplies : true;
 
 		// Subscribe events
 		this.subscriber.on("notesStream", this.onNote);
diff --git a/packages/backend/src/server/api/stream/channels/home-timeline.ts b/packages/backend/src/server/api/stream/channels/home-timeline.ts
index 47875aeda..52e2dc2a9 100644
--- a/packages/backend/src/server/api/stream/channels/home-timeline.ts
+++ b/packages/backend/src/server/api/stream/channels/home-timeline.ts
@@ -16,7 +16,7 @@ export default class extends Channel {
 	}
 
 	public async init(params: any) {
-		this.withReplies = params.withReplies as boolean;
+		this.withReplies = params != null ? !!params.withReplies : true;
 
 		// Subscribe events
 		this.subscriber.on("notesStream", this.onNote);
diff --git a/packages/backend/src/server/api/stream/channels/hybrid-timeline.ts b/packages/backend/src/server/api/stream/channels/hybrid-timeline.ts
index 1f1a9b831..6e2da514f 100644
--- a/packages/backend/src/server/api/stream/channels/hybrid-timeline.ts
+++ b/packages/backend/src/server/api/stream/channels/hybrid-timeline.ts
@@ -25,7 +25,7 @@ export default class extends Channel {
 		)
 			return;
 
-		this.withReplies = params.withReplies as boolean;
+		this.withReplies = params != null ? !!params.withReplies : true;
 
 		// Subscribe events
 		this.subscriber.on("notesStream", this.onNote);
diff --git a/packages/backend/src/server/api/stream/channels/local-timeline.ts b/packages/backend/src/server/api/stream/channels/local-timeline.ts
index bd488bdd7..2cc286b17 100644
--- a/packages/backend/src/server/api/stream/channels/local-timeline.ts
+++ b/packages/backend/src/server/api/stream/channels/local-timeline.ts
@@ -22,7 +22,7 @@ export default class extends Channel {
 				return;
 		}
 
-		this.withReplies = params.withReplies as boolean;
+		this.withReplies = params != null ? !!params.withReplies : true;
 
 		// Subscribe events
 		this.subscriber.on("notesStream", this.onNote);
diff --git a/packages/backend/src/server/api/stream/channels/recommended-timeline.ts b/packages/backend/src/server/api/stream/channels/recommended-timeline.ts
index 0b78d8b66..186b12032 100644
--- a/packages/backend/src/server/api/stream/channels/recommended-timeline.ts
+++ b/packages/backend/src/server/api/stream/channels/recommended-timeline.ts
@@ -25,7 +25,7 @@ export default class extends Channel {
 		)
 			return;
 
-		this.withReplies = params.withReplies as boolean;
+		this.withReplies = params != null ? !!params.withReplies : true;
 
 		// Subscribe events
 		this.subscriber.on("notesStream", this.onNote);