diff --git a/src/mame/video/namco_c355spr.cpp b/src/mame/video/namco_c355spr.cpp
index f93c5c4c1fc..053a9f44561 100644
--- a/src/mame/video/namco_c355spr.cpp
+++ b/src/mame/video/namco_c355spr.cpp
@@ -439,8 +439,8 @@ void namco_c355spr_device::get_sprites()
 		get_list(1, &m_spriteram[buffer][0x14000/2], &m_spriteram[buffer][0x10000/2]);
 }
 
-template<class _BitmapClass>
-void namco_c355spr_device::draw_sprites(screen_device &screen, _BitmapClass &bitmap, const rectangle &cliprect, int pri)
+template<class BitmapClass>
+void namco_c355spr_device::draw_sprites(screen_device &screen, BitmapClass &bitmap, const rectangle &cliprect, int pri)
 {
 //  int offs = spriteram16[0x18000/2]; /* end-of-sprite-list */
 	if (pri == 0)
diff --git a/src/mame/video/namco_c355spr.h b/src/mame/video/namco_c355spr.h
index 5d53120488e..5e26345b942 100644
--- a/src/mame/video/namco_c355spr.h
+++ b/src/mame/video/namco_c355spr.h
@@ -72,7 +72,7 @@ private:
 	void get_single_sprite(const uint16_t *pSource, struct c355_sprite *sprite_ptr);
 	void get_list(int no, const uint16_t *pSpriteList16, const uint16_t *pSpriteTable);
 	void get_sprites();
-	template<class _BitmapClass> void draw_sprites(screen_device &screen, _BitmapClass &bitmap, const rectangle &cliprect, int pri);
+	template<class BitmapClass> void draw_sprites(screen_device &screen, BitmapClass &bitmap, const rectangle &cliprect, int pri);
 
 	struct c355_sprite *m_spritelist[2];
 	const struct c355_sprite *m_sprite_end[2];
@@ -94,4 +94,3 @@ private:
 DECLARE_DEVICE_TYPE(NAMCO_C355SPR, namco_c355spr_device)
 
 #endif // MAME_VIDEO_NAMCO_C355SPR_H
-