diff --git a/src/main/cpp/blaze_util_platform.h b/src/main/cpp/blaze_util_platform.h
index 7599798422f851..e8a15c222f36a6 100644
--- a/src/main/cpp/blaze_util_platform.h
+++ b/src/main/cpp/blaze_util_platform.h
@@ -77,22 +77,23 @@ class SignalHandler {
   typedef void (* Callback)();
 
   static SignalHandler& Get() { return INSTANCE; }
-  GlobalVariables* GetGlobals() { return _globals; }
-  void CancelServer() { _cancel_server(); }
+  GlobalVariables* GetGlobals() const { return globals_; }
+  const std::string& GetProductName() const { return product_name_; }
+  const std::string& GetOutputBase() const { return output_base_; }
+  void CancelServer() { cancel_server_(); }
   void Install(const std::string &product_name, const std::string &output_base,
                GlobalVariables* globals, Callback cancel_server);
   ATTRIBUTE_NORETURN void PropagateSignalOrExit(int exit_code);
 
-  std::string _product_name;
-  std::string _output_base;
-
  private:
   static SignalHandler INSTANCE;
 
-  GlobalVariables* _globals;
-  Callback _cancel_server;
+  std::string product_name_;
+  std::string output_base_;
+  GlobalVariables* globals_;
+  Callback cancel_server_;
 
-  SignalHandler() : _globals(nullptr), _cancel_server(nullptr) {}
+  SignalHandler() : globals_(nullptr), cancel_server_(nullptr) {}
 };
 
 // A signal-safe version of fprintf(stderr, ...).
diff --git a/src/main/cpp/blaze_util_posix.cc b/src/main/cpp/blaze_util_posix.cc
index e11e230396b638..4767496f170894 100644
--- a/src/main/cpp/blaze_util_posix.cc
+++ b/src/main/cpp/blaze_util_posix.cc
@@ -141,23 +141,23 @@ static void handler(int signum) {
       if (++sigint_count >= 3) {
         SigPrintf(
             "\n%s caught third interrupt signal; killed.\n\n",
-            SignalHandler::Get()._product_name.c_str());
+            SignalHandler::Get().GetProductName().c_str());
         if (SignalHandler::Get().GetGlobals()->server_pid != -1) {
           KillServerProcess(
               SignalHandler::Get().GetGlobals()->server_pid,
-              SignalHandler::Get()._output_base);
+              SignalHandler::Get().GetOutputBase());
         }
         _exit(1);
       }
       SigPrintf(
           "\n%s caught interrupt signal; shutting down.\n\n",
-          SignalHandler::Get()._product_name.c_str());
+          SignalHandler::Get().GetProductName().c_str());
       SignalHandler::Get().CancelServer();
       break;
     case SIGTERM:
       SigPrintf(
           "\n%s caught terminate signal; shutting down.\n\n",
-          SignalHandler::Get()._product_name.c_str());
+          SignalHandler::Get().GetProductName().c_str());
       SignalHandler::Get().CancelServer();
       break;
     case SIGPIPE:
@@ -178,10 +178,10 @@ void SignalHandler::Install(const string &product_name,
                             const string &output_base,
                             GlobalVariables* globals,
                             SignalHandler::Callback cancel_server) {
-  _product_name = product_name;
-  _output_base = output_base;
-  _globals = globals;
-  _cancel_server = cancel_server;
+  product_name_ = product_name;
+  output_base_ = output_base;
+  globals_ = globals;
+  cancel_server_ = cancel_server;
 
   // Unblock all signals.
   sigset_t sigset;
diff --git a/src/main/cpp/blaze_util_windows.cc b/src/main/cpp/blaze_util_windows.cc
index c238613759ea1e..9b0f98afece118 100644
--- a/src/main/cpp/blaze_util_windows.cc
+++ b/src/main/cpp/blaze_util_windows.cc
@@ -297,17 +297,17 @@ BOOL WINAPI ConsoleCtrlHandler(_In_ DWORD ctrlType) {
       if (++sigint_count >= 3) {
         SigPrintf(
             "\n%s caught third Ctrl+C handler signal; killed.\n\n",
-            SignalHandler::Get()._product_name.c_str());
+            SignalHandler::Get().GetProductName().c_str());
         if (SignalHandler::Get().GetGlobals()->server_pid != -1) {
           KillServerProcess(
               SignalHandler::Get().GetGlobals()->server_pid,
-              SignalHandler::Get()._output_base);
+              SignalHandler::Get().GetOutputBase());
         }
         _exit(1);
       }
       SigPrintf(
           "\n%s Ctrl+C handler; shutting down.\n\n",
-          SignalHandler::Get()._product_name.c_str());
+          SignalHandler::Get().GetProductName().c_str());
       SignalHandler::Get().CancelServer();
       return TRUE;
 
@@ -322,10 +322,10 @@ void SignalHandler::Install(const string &product_name,
                             const string &output_base,
                             GlobalVariables* globals,
                             SignalHandler::Callback cancel_server) {
-  _product_name = product_name;
-  _output_base = output_base;
-  _globals = globals;
-  _cancel_server = cancel_server;
+  product_name_ = product_name;
+  output_base_ = output_base;
+  globals_ = globals;
+  cancel_server_ = cancel_server;
   ::SetConsoleCtrlHandler(&ConsoleCtrlHandler, TRUE);
 }