diff --git a/src/mame/video/stvvdp2.c b/src/mame/video/stvvdp2.c
index 770fd5a53cf..b56f253af36 100644
--- a/src/mame/video/stvvdp2.c
+++ b/src/mame/video/stvvdp2.c
@@ -2164,7 +2164,7 @@ static struct _stv_rbg_cache_data
 
 static void stv_vdp2_fill_rotation_parameter_table( running_machine *machine, UINT8 rot_parameter )
 {
-	UINT32 address;
+	UINT32 address = 0;
 
 	address = (((STV_VDP2_RPTAU << 16) | STV_VDP2_RPTAL) << 1);
 	if ( rot_parameter == 1 )