diff --git a/src/mame/video/digdug.cpp b/src/mame/video/digdug.cpp
index 7e24b76b576..e4db5220350 100644
--- a/src/mame/video/digdug.cpp
+++ b/src/mame/video/digdug.cpp
@@ -142,6 +142,9 @@ TILE_GET_INFO_MEMBER(digdug_state::tx_get_tile_info)
 
 VIDEO_START_MEMBER(digdug_state,digdug)
 {
+	m_bg_disable = 0;
+	m_bg_select = 0;
+
 	m_bg_tilemap = &machine().tilemap().create(m_gfxdecode, tilemap_get_info_delegate(FUNC(digdug_state::bg_get_tile_info),this),tilemap_mapper_delegate(FUNC(digdug_state::tilemap_scan),this),8,8,36,28);
 	m_fg_tilemap = &machine().tilemap().create(m_gfxdecode, tilemap_get_info_delegate(FUNC(digdug_state::tx_get_tile_info),this),tilemap_mapper_delegate(FUNC(digdug_state::tilemap_scan),this),8,8,36,28);