diff --git a/setup/so-whiptail b/setup/so-whiptail
index 3e4a79a91..7c2665363 100755
--- a/setup/so-whiptail
+++ b/setup/so-whiptail
@@ -460,7 +460,7 @@ whiptail_end_settings() {
 		for nic in "${BNICS[@]}"; do
 			__append_end_msg "  - $nic"
 		done
-		__append_end_msg "MTU: $MTU"
+		[[ -n $MTU ]] && __append_end_msg "MTU: $MTU"
 	fi
 
 	local homenet_arr