diff --git a/apps/browser/src/background/runtime.background.ts b/apps/browser/src/background/runtime.background.ts
index cab505f256..38bb2ec50c 100644
--- a/apps/browser/src/background/runtime.background.ts
+++ b/apps/browser/src/background/runtime.background.ts
@@ -195,8 +195,7 @@ export default class RuntimeBackground {
         return await this.main.biometricsService.getBiometricsStatus();
       }
       case BiometricsCommands.UnlockWithBiometricsForUser: {
-        const userKey = await this.main.biometricsService.unlockWithBiometricsForUser(msg.userId);
-        return userKey.keyB64;
+        return await this.main.biometricsService.unlockWithBiometricsForUser(msg.userId);
       }
       case BiometricsCommands.GetBiometricsStatusForUser: {
         return await this.main.biometricsService.getBiometricsStatusForUser(msg.userId);
diff --git a/apps/browser/src/key-management/biometrics/foreground-browser-biometrics.ts b/apps/browser/src/key-management/biometrics/foreground-browser-biometrics.ts
index 0235ad5bd9..43cc25e4da 100644
--- a/apps/browser/src/key-management/biometrics/foreground-browser-biometrics.ts
+++ b/apps/browser/src/key-management/biometrics/foreground-browser-biometrics.ts
@@ -1,4 +1,3 @@
-import { SymmetricCryptoKey } from "@bitwarden/common/platform/models/domain/symmetric-crypto-key";
 import { UserId } from "@bitwarden/common/types/guid";
 import { UserKey } from "@bitwarden/common/types/key";
 import { BiometricsCommands, BiometricsService, BiometricsStatus } from "@bitwarden/key-management";
@@ -29,13 +28,13 @@ export class ForegroundBrowserBiometricsService extends BiometricsService {
 
   async unlockWithBiometricsForUser(userId: UserId): Promise<UserKey | null> {
     const response = await BrowserApi.sendMessageWithResponse<{
-      result: string;
+      result: UserKey;
       error: string;
     }>(BiometricsCommands.UnlockWithBiometricsForUser, { userId });
     if (!response.result) {
       return null;
     }
-    return SymmetricCryptoKey.fromString(response.result) as UserKey;
+    return response.result;
   }
 
   async getBiometricsStatusForUser(id: UserId): Promise<BiometricsStatus> {