diff --git a/python/samba/netcmd/dns.py b/python/samba/netcmd/dns.py
index 309951d2d84..439b02d5ecb 100644
--- a/python/samba/netcmd/dns.py
+++ b/python/samba/netcmd/dns.py
@@ -424,7 +424,7 @@ class PTRRecord(dnsserver.DNS_RPC_RECORD):
         self.wType = dnsp.DNS_TYPE_PTR
         self.dwFlags = rank | node_flag
         self.dwSerial = serial
-        self.dwTtleSeconds = ttl
+        self.dwTtlSeconds = ttl
         self._ptr = ptr[:]
         ptr_name = dnsserver.DNS_RPC_NAME()
         ptr_name.str = self._ptr