diff --git a/libwvdrmengine/cdm/core/src/license.cpp b/libwvdrmengine/cdm/core/src/license.cpp
index ad1da091..baafccf5 100644
--- a/libwvdrmengine/cdm/core/src/license.cpp
+++ b/libwvdrmengine/cdm/core/src/license.cpp
@@ -25,7 +25,7 @@ std::string kDeviceNameKey = "device_name";
 std::string kProductNameKey = "product_name";
 std::string kBuildInfoKey = "build_info";
 std::string kDeviceIdKey = "device_id";
-std::string kOsVersion = "os_version";
+std::string kOsVersionKey = "os_version";
 const unsigned char kServiceCertificateCAPublicKey[] = {
     0x30, 0x82, 0x01, 0x8a, 0x02, 0x82, 0x01, 0x81,
     0x00, 0xb4, 0xfe, 0x39, 0xc3, 0x65, 0x90, 0x03,
@@ -282,7 +282,7 @@ bool CdmLicense::PrepareKeyRequest(const InitializationData& init_data,
     client_info->set_name(kDeviceIdKey);
     client_info->set_value(value);
   }
-  if (Properties::GetOSVersion(&value)) {
+  if (Properties::GetOsVersion(&value)) {
     client_info = client_id->add_client_info();
     client_info->set_name(kOsVersionKey);
     client_info->set_value(value);