diff --git a/libwvdrmengine/cdm/test/request_license_test.cpp b/libwvdrmengine/cdm/test/request_license_test.cpp
index c272d474..a9809ce2 100644
--- a/libwvdrmengine/cdm/test/request_license_test.cpp
+++ b/libwvdrmengine/cdm/test/request_license_test.cpp
@@ -6233,6 +6233,9 @@ TEST_F(WvCdmRequestLicenseRollbackTest, Streaming_ExpireBeforeRollback) {
   GenerateKeyRequest(init_data_with_expiry_, kLicenseTypeStreaming);
   VerifyKeyRequestResponse(config_.license_server(), config_.client_auth());
 
+  // Start playback timer.
+  EXPECT_EQ(NO_ERROR, Decrypt(session_id_));
+
   // Elapse time so that the key should now be considered expired.
   std::this_thread::sleep_for(
       std::chrono::milliseconds(kExpirationWithWindowMs_));
@@ -6319,6 +6322,9 @@ TEST_F(WvCdmRequestLicenseRollbackTest,
                           nullptr, &session_id_);
   EXPECT_EQ(wvcdm::KEY_ADDED, decryptor_->RestoreKey(session_id_, key_set_id));
 
+  // Start playback timer.
+  EXPECT_EQ(NO_ERROR, Decrypt(session_id_));
+
   RollbackSystemTime(kExpirationWithWindowMs_);
 
   // Elapse time so that the key should now be considered expired.
@@ -6357,6 +6363,9 @@ TEST_F(WvCdmRequestLicenseRollbackTest,
                           nullptr, &session_id_);
   EXPECT_EQ(wvcdm::KEY_ADDED, decryptor_->RestoreKey(session_id_, key_set_id));
 
+  // Start playback timer.
+  EXPECT_EQ(NO_ERROR, Decrypt(session_id_));
+
   // Elapse time so that the key should now be considered expired.
   std::this_thread::sleep_for(
       std::chrono::milliseconds(kExpirationWithWindowMs_));