diff --git a/src/osd/modules/lib/osdobj_common.cpp b/src/osd/modules/lib/osdobj_common.cpp
index adc202ce4db..c9d4a37798d 100644
--- a/src/osd/modules/lib/osdobj_common.cpp
+++ b/src/osd/modules/lib/osdobj_common.cpp
@@ -428,7 +428,7 @@ void osd_common_t::init(running_machine &machine)
 
 	if (watchdog_timeout != 0)
 	{
-		m_watchdog = std::make_unique<watchdog>();
+		m_watchdog = std::make_unique<osd_watchdog>();
 		m_watchdog->setTimeout(watchdog_timeout);
 	}
 }
diff --git a/src/osd/modules/lib/osdobj_common.h b/src/osd/modules/lib/osdobj_common.h
index 9afce249eb1..00778fac569 100644
--- a/src/osd/modules/lib/osdobj_common.h
+++ b/src/osd/modules/lib/osdobj_common.h
@@ -282,7 +282,7 @@ protected:
 	input_module*  m_lightgun_input;
 	input_module*  m_joystick_input;
 	output_module* m_output;
-	std::unique_ptr<watchdog> m_watchdog;
+	std::unique_ptr<osd_watchdog> m_watchdog;
 	std::vector<ui_menu_item> m_sliders;
 
 private:
diff --git a/src/osd/watchdog.cpp b/src/osd/watchdog.cpp
index 8a86464cb56..f963ef13f07 100644
--- a/src/osd/watchdog.cpp
+++ b/src/osd/watchdog.cpp
@@ -17,7 +17,7 @@
 
 static void *watchdog_thread(void *param)
 {
-	watchdog *thiz = (watchdog *) param;
+	osd_watchdog *thiz = (osd_watchdog *) param;
 
 	while (TRUE)
 	{
@@ -41,7 +41,7 @@ static void *watchdog_thread(void *param)
 	return nullptr;
 }
 
-watchdog::watchdog(void)
+osd_watchdog::osd_watchdog(void)
 : m_event(1,0)
 {
 	m_do_exit = 0;
@@ -49,7 +49,7 @@ watchdog::watchdog(void)
 	m_timeout = 60 * osd_ticks_per_second();
 }
 
-watchdog::~watchdog(void)
+osd_watchdog::~osd_watchdog(void)
 {
 	m_do_exit = 1;
 	m_event.set();
@@ -57,7 +57,7 @@ watchdog::~watchdog(void)
 	delete m_thread;
 }
 
-void watchdog::setTimeout(int timeout)
+void osd_watchdog::setTimeout(int timeout)
 {
 	m_timeout = timeout * osd_ticks_per_second();
 	this->reset();
diff --git a/src/osd/watchdog.h b/src/osd/watchdog.h
index f9c06e72bb0..dbcccf43abf 100644
--- a/src/osd/watchdog.h
+++ b/src/osd/watchdog.h
@@ -14,11 +14,11 @@
 #include <atomic>
 #include <thread>
 
-class watchdog
+class osd_watchdog
 {
 public:
-	watchdog(void);
-	~watchdog(void);
+	osd_watchdog(void);
+	~osd_watchdog(void);
 
 	void reset() { m_event.set(); }