diff --git a/src/mod/applications/mod_cidlookup/mod_cidlookup.c b/src/mod/applications/mod_cidlookup/mod_cidlookup.c
index 9704629e2e..a6c6669dde 100755
--- a/src/mod/applications/mod_cidlookup/mod_cidlookup.c
+++ b/src/mod/applications/mod_cidlookup/mod_cidlookup.c
@@ -513,7 +513,7 @@ SWITCH_STANDARD_API(cidlookup_function)
 		if (name) {
 			stream->write_function(stream, name);
 		} else {
-			stream->write_function(stream,"-ERR");
+			stream->write_function(stream, "UNKNOWN");
 		}
 	}
 	switch_goto_status(SWITCH_STATUS_SUCCESS, done);