diff --git a/libwvdrmengine/mediadrm/aidl_include/WVGenericCryptoInterface.h b/libwvdrmengine/mediadrm/aidl_include/WVGenericCryptoInterface.h
index d4712779..0a71fde1 100644
--- a/libwvdrmengine/mediadrm/aidl_include/WVGenericCryptoInterface.h
+++ b/libwvdrmengine/mediadrm/aidl_include/WVGenericCryptoInterface.h
@@ -25,7 +25,7 @@ class WVGenericCryptoInterface {
                                     const uint8_t* key_id,
                                     size_t key_id_length) {
     return OEMCrypto_SelectKey(session, key_id, key_id_length,
-                               OEMCrypto_CipherMode_CBC);
+                               OEMCrypto_CipherMode_CBCS);
   }
 
   virtual OEMCryptoResult encrypt(OEMCrypto_SESSION session,