diff --git a/src/system_wrappers/source/data_log.cc b/src/system_wrappers/source/data_log.cc
index c33f24c47c..af62018719 100644
--- a/src/system_wrappers/source/data_log.cc
+++ b/src/system_wrappers/source/data_log.cc
@@ -283,9 +283,11 @@ void DataLog::ReturnLog() {
 
 std::string DataLog::Combine(const std::string& table_name, int table_id) {
   std::stringstream ss;
-  std::string combined_id;
-  ss << table_name << "_" << table_id;
-  ss >> combined_id;
+  std::string combined_id = table_name;
+  std::string number_suffix;
+  ss << "_" << table_id;
+  ss >> number_suffix;
+  combined_id += number_suffix;
   std::transform(combined_id.begin(), combined_id.end(), combined_id.begin(),
                  ::tolower);
   return combined_id;
diff --git a/src/system_wrappers/source/data_log_unittest.cc b/src/system_wrappers/source/data_log_unittest.cc
index d588947f04..c64ed94d6c 100644
--- a/src/system_wrappers/source/data_log_unittest.cc
+++ b/src/system_wrappers/source/data_log_unittest.cc
@@ -121,6 +121,11 @@ TEST(TestDataLog, CreateReturnTest) {
   ASSERT_LT(DataLog::AddTable(DataLog::Combine("table failure", 1)), 0);
 }
 
+TEST(TestDataLog, VerifyCombineMethod) {
+  EXPECT_EQ(std::string("a proper table_1"),
+            DataLog::Combine("a proper table", 1));
+}
+
 TEST(TestDataLog, VerifySingleTable) {
   DataLog::CreateLog();
   DataLog::AddTable(DataLog::Combine("table", 1));