diff --git a/matrix-sdk-android/src/rustCrypto/java/org/matrix/android/sdk/internal/crypto/RustCrossSigningService.kt b/matrix-sdk-android/src/rustCrypto/java/org/matrix/android/sdk/internal/crypto/RustCrossSigningService.kt
index 1940314aed..5a200a59ff 100644
--- a/matrix-sdk-android/src/rustCrypto/java/org/matrix/android/sdk/internal/crypto/RustCrossSigningService.kt
+++ b/matrix-sdk-android/src/rustCrypto/java/org/matrix/android/sdk/internal/crypto/RustCrossSigningService.kt
@@ -238,6 +238,6 @@ internal class RustCrossSigningService @Inject constructor(
 
     override fun checkOtherMSKTrusted(myCrossSigningInfo: MXCrossSigningInfo?, otherInfo: MXCrossSigningInfo?): UserTrustResult {
         // is this needed in rust? should be moved to internal API?
-        UserTrustResult.Failure("Not used in rust")
+        return UserTrustResult.Failure("Not used in rust")
     }
 }