diff --git a/system/jlib/jsocket.cpp b/system/jlib/jsocket.cpp
index 420487f3afa..dc1c72b6b89 100644
--- a/system/jlib/jsocket.cpp
+++ b/system/jlib/jsocket.cpp
@@ -3736,6 +3736,9 @@ bool IpAddress::ipincrement(unsigned count,byte minoctet,byte maxoctet,unsigned
             count = v/base;
         }
     }
+    StringBuffer hname;
+    getIpText(hname);
+    hostname.setown(hname); // NB: StringAtr::setown detaches ownership from StringBuffer
     return true;
 }