diff --git a/pgpainless-core/src/main/kotlin/org/pgpainless/key/protection/BaseSecretKeyRingProtector.kt b/pgpainless-core/src/main/kotlin/org/pgpainless/key/protection/BaseSecretKeyRingProtector.kt
index 5546650e..4afe0b33 100644
--- a/pgpainless-core/src/main/kotlin/org/pgpainless/key/protection/BaseSecretKeyRingProtector.kt
+++ b/pgpainless-core/src/main/kotlin/org/pgpainless/key/protection/BaseSecretKeyRingProtector.kt
@@ -29,6 +29,7 @@ open class BaseSecretKeyRingProtector(
         return passphraseProvider.hasPassphrase(keyIdentifier)
     }
 
+    @Deprecated("Pass in a KeyIdentifier instead.")
     override fun getDecryptor(keyId: Long): PBESecretKeyDecryptor? =
         getDecryptor(KeyIdentifier(keyId))