diff --git a/lib/server/win.js b/lib/server/win.js
index f1987cbb..8690f3af 100644
--- a/lib/server/win.js
+++ b/lib/server/win.js
@@ -30,7 +30,7 @@
             BATDIR      = SRVDIR + 'win\\',
             SCENARIO    = BATDIR + 'getvolumes.txt',
             lCHCP       = 'chcp ' + Charset.UNICODE,
-            lDiskPart   = 'diskpart -s' + SCENARIO;
+            lDiskPart   = 'diskpart -s ' + SCENARIO;
         
         exec(lCHCP + ' &&  ' + lDiskPart, retProcessOuput(pCallBack));
     };