diff --git a/src/lib/reflect/type.go b/src/lib/reflect/type.go
index 8b5e88f97b1..279f6f3150d 100644
--- a/src/lib/reflect/type.go
+++ b/src/lib/reflect/type.go
@@ -561,8 +561,8 @@ type Parser struct {
 	index	int;	// next character position in str
 }
 
-// Return typestring starting at position i.
-// Trim trailing blanks.
+// Return typestring starting at position i.  It will finish at the
+// end of the previous token (before trailing white space).
 func (p *Parser) TypeString(i int) string {
 	return p.str[i:p.prevend];
 }