diff --git a/src/asm/asmy.y b/src/asm/asmy.y
index d44a4376..1711b369 100644
--- a/src/asm/asmy.y
+++ b/src/asm/asmy.y
@@ -37,7 +37,7 @@ static void bankrangecheck(char *name, uint32_t secttype, int32_t org,
 	case SECT_SRAM:
 		stype = "SRAM";
 		minbank = 0;
-		maxbank = 0x1ff;
+		maxbank = 15;
 		break;
 	case SECT_WRAMX:
 		stype = "WRAMX";