diff --git a/src/network-services-pentesting/137-138-139-pentesting-netbios.md b/src/network-services-pentesting/137-138-139-pentesting-netbios.md
index f9f545682..1c5be3fad 100644
--- a/src/network-services-pentesting/137-138-139-pentesting-netbios.md
+++ b/src/network-services-pentesting/137-138-139-pentesting-netbios.md
@@ -27,7 +27,7 @@ sudo nmap -sU -sV -T4 --script nbstat.nse -p137 -Pn -n <IP>
 ```
 ### Datagram Distribution Service
 
-NetBIOS datagrams huruhusu mawasiliano yasiyo na muunganiko kupitia UDP, ikisaidia ujumbe wa moja kwa moja au matangazo kwa majina yote ya mtandao. Huduma hii inatumia bandari **138/udp**.
+NetBIOS datagrams huruhusu mawasiliano yasiyo na muunganisho kupitia UDP, ikisaidia ujumbe wa moja kwa moja au matangazo kwa majina yote ya mtandao. Huduma hii inatumia bandari **138/udp**.
 ```bash
 PORT    STATE         SERVICE     VERSION
 138/udp open|filtered netbios-dgm