diff --git a/CHANGELOG b/CHANGELOG
index 3603b017..6b4b9ac2 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,7 @@ jc changelog
 
 20210510 v1.15.4
 - Update ping parser to support error responses in OSX and BSD
+- Update ping parser to be more resillient against parsing errors for unknown error types
 
 20210426 v1.15.3
 - Add ufw status command parser tested on linux
diff --git a/docs/parsers/ping.md b/docs/parsers/ping.md
index d2325648..570c8c7d 100644
--- a/docs/parsers/ping.md
+++ b/docs/parsers/ping.md
@@ -38,7 +38,7 @@ Schema:
       "round_trip_ms_stddev":        float,
       "responses": [
         {
-          "type":                    string,        # 'reply', 'timeout', etc. See type_map for all options
+          "type":                    string,        # 'reply', 'timeout', 'unparsable_line', etc. See `_error_type.type_map` for all options
           "timestamp":               float,
           "bytes":                   integer,
           "response_ip":             string,