diff --git a/openvidu-components-angular/projects/openvidu-angular/src/lib/services/caption/caption.service.ts b/openvidu-components-angular/projects/openvidu-angular/src/lib/services/caption/caption.service.ts
index bb501ed4..e5948e70 100644
--- a/openvidu-components-angular/projects/openvidu-angular/src/lib/services/caption/caption.service.ts
+++ b/openvidu-components-angular/projects/openvidu-angular/src/lib/services/caption/caption.service.ts
@@ -43,8 +43,9 @@ export class CaptionService {
 	}
 
 	setLanguage(lang: string) {
-		if (this.langTitles.some((l) => l.ISO === lang)) {
-			this.captionLangSelected = this.langTitles.find((l) => l.ISO === lang);
+		const newLang = this.langTitles.find((l) => l.ISO === lang);
+		if(!!newLang && newLang.ISO !== this.captionLangSelected.ISO){
+			this.captionLangSelected = newLang;
 			this.storageService.setCaptionLang(lang);
 			this._captionLangObs.next(this.captionLangSelected);
 		}