diff --git a/src/boot.sh b/src/boot.sh
index 7affa66..1967eaf 100644
--- a/src/boot.sh
+++ b/src/boot.sh
@@ -33,7 +33,7 @@ case "${BOOT_MODE,,}" in
     BOOT_OPTS="-rtc base=localtime"
     ;;
   *)
-    error "Unrecognized BOOT_MODE, value \"${BOOT_MODE}\" is not recognized!"
+    error "Unknown BOOT_MODE, value \"${BOOT_MODE}\" is not recognized!"
     exit 33
     ;;
 esac