diff --git a/openvidu-components-angular/projects/openvidu-angular/src/lib/components/stream/stream.component.html b/openvidu-components-angular/projects/openvidu-angular/src/lib/components/stream/stream.component.html
index e137148c..abec5983 100644
--- a/openvidu-components-angular/projects/openvidu-angular/src/lib/components/stream/stream.component.html
+++ b/openvidu-components-angular/projects/openvidu-angular/src/lib/components/stream/stream.component.html
@@ -60,7 +60,7 @@
 				<span *ngIf="videoSizeIcon === videoSizeIconEnum.NORMAL">{{ 'STREAM.ZOOM_OUT' | translate }}</span>
 				<span *ngIf="videoSizeIcon === videoSizeIconEnum.BIG">{{ 'STREAM.ZOOM_IN' | translate }}</span>
 			</button>
-			<button mat-menu-item id="sound-btn" *ngIf="!this._stream.local" (click)="toggleMuteForcibly()">
+			<button mat-menu-item id="sound-btn" *ngIf="!this._stream.participant.local" (click)="toggleMuteForcibly()">
 				<mat-icon *ngIf="!_stream.participant.isMutedForcibly">volume_up</mat-icon>
 				<span *ngIf="!_stream.participant.isMutedForcibly">{{ 'STREAM.MUTE_SOUND' | translate }}</span>
 
diff --git a/openvidu-components-angular/projects/openvidu-angular/src/lib/components/stream/stream.component.ts b/openvidu-components-angular/projects/openvidu-angular/src/lib/components/stream/stream.component.ts
index c3c39acc..0ef5ff3b 100644
--- a/openvidu-components-angular/projects/openvidu-angular/src/lib/components/stream/stream.component.ts
+++ b/openvidu-components-angular/projects/openvidu-angular/src/lib/components/stream/stream.component.ts
@@ -212,7 +212,9 @@ export class StreamComponent implements OnInit {
 	 * @ignore
 	 */
 	toggleMuteForcibly() {
-		this.participantService.setRemoteMutedForcibly(this._stream.participant.id, !this._stream.participant.isMutedForcibly);
+		if(this._stream.participant){
+			this.participantService.setRemoteMutedForcibly(this._stream.participant.id, !this._stream.participant.isMutedForcibly);
+		}
 	}
 
 	/**