diff --git a/ipcalc b/ipcalc
index 02a7a51..d18c2d7 100755
--- a/ipcalc
+++ b/ipcalc
@@ -1329,7 +1329,7 @@ sub help {
 IP Calculator $version
 
 Enter your netmask(s) in CIDR notation (/25) or dotted decimals
-(255.255.255.0). Inverse netmask are recognized. If you mmit the
+(255.255.255.0). Inverse netmask are recognized. If you omit the
 netmask, ipcalc uses the default netmask for the class of your
 network.