diff --git a/get_file.go b/get_file.go
index 786219f03..78660839a 100644
--- a/get_file.go
+++ b/get_file.go
@@ -10,7 +10,9 @@ import (
 type FileGetter struct {
 	getter
 
-	// Copy, if set to true, will copy data instead of using a symlink
+	// Copy, if set to true, will copy data instead of using a symlink. If
+	// false, attempts to symlink to speed up the operation and to lower the
+	// disk space usage. If the symlink fails, may attempt to copy on windows.
 	Copy bool
 }