diff --git a/src/device/oprom/yabel/io.c b/src/device/oprom/yabel/io.c
index e8c41ce24a..051a601569 100644
--- a/src/device/oprom/yabel/io.c
+++ b/src/device/oprom/yabel/io.c
@@ -184,8 +184,7 @@ my_inb(X86EMU_pioAddr addr)
 				X86EMU_trace_on();
 			}
 			M.x86.debug &= ~DEBUG_DECODE_NOPRINT_F;
-			//HALT_SYS();
-			// no break, intentional fall-through to default!!
+			// fall-through
 		default:
 			DEBUG_PRINTF_IO
 			    ("%s(%04x) reading from bios_device.io_buffer\n",