diff --git a/sys/filesys_windows.go b/sys/filesys_windows.go
index 019831958..47b74db2a 100644
--- a/sys/filesys_windows.go
+++ b/sys/filesys_windows.go
@@ -29,8 +29,9 @@ import (
 const SddlAdministratorsLocalSystem = "D:P(A;OICI;GA;;;BA)(A;OICI;GA;;;SY)"
 
 // volumePath is a regular expression to check if a path is a Windows
-// volume path (e.g., "\\?\Volume{4c1b02c1-d990-11dc-99ae-806e6f6e6963}".
-var volumePath = regexp.MustCompile(`^\\\\\?\\Volume{[a-z0-9-]+}$`)
+// volume path (e.g., "\\?\Volume{4c1b02c1-d990-11dc-99ae-806e6f6e6963}"
+// or "\\?\Volume{4c1b02c1-d990-11dc-99ae-806e6f6e6963}\").
+var volumePath = regexp.MustCompile(`^\\\\\?\\Volume{[a-z0-9-]+}\\?$`)
 
 // MkdirAllWithACL is a custom version of os.MkdirAll modified for use on Windows
 // so that it is both volume path aware, and to create a directory