diff --git a/src/burn/drv/pst90s/d_seta2.cpp b/src/burn/drv/pst90s/d_seta2.cpp
index 6949103f2..5b2bf1397 100644
--- a/src/burn/drv/pst90s/d_seta2.cpp
+++ b/src/burn/drv/pst90s/d_seta2.cpp
@@ -2295,8 +2295,8 @@ static INT32 pzlbowlInit()
 	gfx_code_mask = 0x0400000 * 4 / 64;
 
 	x1010_sound_init(50000000 / 3, 0x0000);
-	x1010_set_route(BURN_SND_X1010_ROUTE_1, 1.00, BURN_SND_ROUTE_LEFT);
-	x1010_set_route(BURN_SND_X1010_ROUTE_2, 1.00, BURN_SND_ROUTE_RIGHT);
+	x1010_set_route(BURN_SND_X1010_ROUTE_1, 1.00, BURN_SND_ROUTE_BOTH);
+	x1010_set_route(BURN_SND_X1010_ROUTE_2, 1.00, BURN_SND_ROUTE_BOTH);
 
 	DrvDoReset();