diff --git a/package/base-files/files/bin/ipcalc.sh b/package/base-files/files/bin/ipcalc.sh
index ffcdfc02d8b..0132e8d9bf4 100755
--- a/package/base-files/files/bin/ipcalc.sh
+++ b/package/base-files/files/bin/ipcalc.sh
@@ -61,7 +61,7 @@ BEGIN {
 	print "PREFIX="prefix
 
 	# range calculations:
-	# ipcalc <ip> <netmask> <start> <num>
+	# ipcalc <ip> <netmask> <range_start> <range_size>
 
 	if (ARGC <= 3)
 		exit(0)