diff --git a/src/include/86box/nvr.h b/src/include/86box/nvr.h
index 97be4adce..3203332f0 100644
--- a/src/include/86box/nvr.h
+++ b/src/include/86box/nvr.h
@@ -102,7 +102,6 @@ extern const device_t via_nvr_device;
 
 extern void	rtc_tick(void);
 
-void apc_handler(int enable, nvr_t *nvr);
 extern void	nvr_init(nvr_t *);
 extern char	*nvr_path(char *str);
 extern FILE	*nvr_fopen(char *str, char *mode);
diff --git a/src/nvr_at.c b/src/nvr_at.c
index 076e4f65e..b1c502d29 100644
--- a/src/nvr_at.c
+++ b/src/nvr_at.c
@@ -921,7 +921,7 @@ nvr_at_init(const device_t *info)
     nvr->size = machines[machine].nvrmask + 1;
     local->lock = (uint8_t *) malloc(nvr->size);
     memset(local->lock, 0x00, nvr->size);
-    local->def = 0x00;
+    local->def = 0xff /*0x00*/;
     local->flags = 0x00;
     switch(info->local & 7) {
 	case 0:		/* standard AT, no century register */