diff --git a/fragmenting_reader.go b/fragmenting_reader.go
index cf3c7999..129edbfa 100644
--- a/fragmenting_reader.go
+++ b/fragmenting_reader.go
@@ -34,8 +34,8 @@ var (
 	errChunkExceedsFragmentSize = errors.New("peer chunk size exceeds remaining data in fragment")
 	errAlreadyReadingArgument   = errors.New("already reading argument")
 	errNotReadingArgument       = errors.New("not reading argument")
-	errMoreDataInArgument       = errors.New("more data available in argument")
-	errExpectedMoreArguments    = errors.New("more arguments in message")
+	errMoreDataInArgument       = errors.New("closed argument reader when there is more data available to read")
+	errExpectedMoreArguments    = errors.New("closed argument reader when there may be more data available to read")
 	errNoMoreFragments          = errors.New("no more fragments")
 )