diff --git a/scripts/west_commands/runners/jlink.py b/scripts/west_commands/runners/jlink.py
index 21a510e2721f..d6d7d472bea6 100644
--- a/scripts/west_commands/runners/jlink.py
+++ b/scripts/west_commands/runners/jlink.py
@@ -31,7 +31,7 @@
 
 def is_ip(ip):
     try:
-        ipaddress.ip_address(ip)
+        ipaddress.ip_address(ip.split(':')[0])
     except ValueError:
         return False
     return True