diff --git a/clients/lcdproc/main.h b/clients/lcdproc/main.h
index 24709f9..fb68ccd 100644
--- a/clients/lcdproc/main.h
+++ b/clients/lcdproc/main.h
@@ -18,7 +18,7 @@
 #define LCDP_AC_OFF		0x00
 #define LCDP_AC_ON		0x01
 #define LCDP_AC_BACKUP		0x02
-#define LCDP_AC_UNKNOWN		0xFF
+#define LCDP_AC_UNKNOWN		0x03
 
 extern int Quit;
 extern int sock;