diff --git a/user/persist.h b/user/persist.h
index d85c964..8f6c15a 100644
--- a/user/persist.h
+++ b/user/persist.h
@@ -16,7 +16,7 @@
 
 // Changing this could be used to force-erase the config area
 // after a firmware upgrade
-#define CHECKSUM_SALT 4
+#define CHECKSUM_SALT 5
 
 #define APPCONF_SIZE 1900
 
diff --git a/user/syscfg.c b/user/syscfg.c
index d4b262f..cca8a5c 100644
--- a/user/syscfg.c
+++ b/user/syscfg.c
@@ -33,4 +33,7 @@ sysconf_restore_defaults(void)
 	sysconf->uart_parity = PARITY_NONE;
 	sysconf->uart_baudrate = BIT_RATE_115200;
 	sysconf->uart_stopbits = ONE_STOP_BIT;
+	sysconf->config_version = SYSCONF_VERSION;
+	sysconf->access_pw[0] = 0;
+	sysconf->pwlock = PWLOCK_NONE;
 }
diff --git a/user/syscfg.h b/user/syscfg.h
index 624dfe3..e66630c 100644
--- a/user/syscfg.h
+++ b/user/syscfg.h
@@ -9,7 +9,7 @@
 
 // Size designed for the wifi config structure
 // Must be constant to avoid corrupting user config after upgrade
-#define SYSCONF_SIZE 200
+#define SYSCONF_SIZE 300
 #define SYSCONF_VERSION 1
 
 enum pwlock {