diff --git a/baggage/baggage.go b/baggage/baggage.go
index e0247a29cbc..ed252bb08a5 100644
--- a/baggage/baggage.go
+++ b/baggage/baggage.go
@@ -561,7 +561,7 @@ func parsePropertyInternal(s string) (p Property, ok bool) {
 	}
 
 	if s[index] != keyValueDelimiter[0] {
-		// Bad key-value delimiter.
+		// Bad key-value delimiter or invalid key.
 		return
 	}