diff --git a/webrtc/system_wrappers/source/data_log_unittest_disabled.cc b/webrtc/system_wrappers/source/data_log_unittest_disabled.cc
index 583bde64e4..31d753e055 100644
--- a/webrtc/system_wrappers/source/data_log_unittest_disabled.cc
+++ b/webrtc/system_wrappers/source/data_log_unittest_disabled.cc
@@ -18,7 +18,7 @@ using ::webrtc::DataLog;
 
 const char* kDataLogFileName = "table_1.txt";
 
-void PerformLogging(std::string table_name) {
+void PerformLogging(const std::string& table_name) {
   // Simulate normal DataTable logging behavior using this table name.
   ASSERT_EQ(0, DataLog::AddTable(table_name));
   ASSERT_EQ(0, DataLog::AddColumn(table_name, "test", 1));