diff --git a/advanced/bash-completion/pihole b/advanced/bash-completion/pihole
index 7ba0dad8..cea36060 100644
--- a/advanced/bash-completion/pihole
+++ b/advanced/bash-completion/pihole
@@ -7,7 +7,7 @@ _pihole() {
 
 	case "${prev}" in
 		"pihole")
-			opts="admin blacklist checkout chronometer debug disable enable flush help logging query reconfigure regex restartdns status tail uninstall updateGravity updatePihole version wildcard whitelist"
+			opts="admin blacklist checkout chronometer debug disable enable flush help logging query reconfigure regex restartdns status tail uninstall updateGravity updatePihole version wildcard whitelist arpflush"
 			COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
 		;;
 		"whitelist"|"blacklist"|"wildcard"|"regex")
diff --git a/pihole b/pihole
index d837f873..9fa65a8f 100755
--- a/pihole
+++ b/pihole
@@ -408,7 +408,8 @@ Options:
                         Add '-h' for more info on disable usage
   restartdns          Restart Pi-hole subsystems
   checkout            Switch Pi-hole subsystems to a different Github branch
-                        Add '-h' for more info on checkout usage";
+                        Add '-h' for more info on checkout usage
+  arpflush            Flush information stored in Pi-hole's network tables";
   exit 0
 }