diff --git a/libwvdrmengine/oemcrypto/test/oemcrypto_cast_test.cpp b/libwvdrmengine/oemcrypto/test/oemcrypto_cast_test.cpp
index fb62985c..83848145 100644
--- a/libwvdrmengine/oemcrypto/test/oemcrypto_cast_test.cpp
+++ b/libwvdrmengine/oemcrypto/test/oemcrypto_cast_test.cpp
@@ -80,7 +80,10 @@ TEST_F(OEMCryptoLoadsCertificateAlternates, ForbidPrepAndSign) {
     OEMCryptoResult result = OEMCrypto_PrepAndSignLicenseRequest(
         s.session_id(), message.data(), message.size(), &core_message_length,
         signature.data(), &signature_length);
-    ASSERT_EQ(OEMCrypto_ERROR_INVALID_KEY, result);
+    // TODO: remove OEMCrypto_ERROR_INVALID_RSA_KEY once OEMCrypto v16 is not
+    // supported anymore. This error code has been deprecated since v17.
+    ASSERT_TRUE(result == OEMCrypto_ERROR_INVALID_KEY ||
+                result == OEMCrypto_ERROR_INVALID_RSA_KEY);
     const vector<uint8_t> zero(signature.size(), 0);
     ASSERT_EQ(signature, zero);  // Signature should not have been computed.
   }