diff --git a/harbour/ChangeLog b/harbour/ChangeLog
index ee60bdc3c5..b77e4f3637 100644
--- a/harbour/ChangeLog
+++ b/harbour/ChangeLog
@@ -16,6 +16,10 @@
    The license applies to all entries newer than 2009-04-28.
 */
 
+2012-09-14 15:43 UTC+0200 Viktor Szakats (harbour syenar.net)
+  * INSTALL
+    ! correction to prev for x64 mode on 64-bit OS
+
 2012-09-14 09:54 UTC+0200 Viktor Szakats (harbour syenar.net)
   * config/global.mk
   * include/hbsetup.h
diff --git a/harbour/INSTALL b/harbour/INSTALL
index a563ef1439..b83f6f7f44 100644
--- a/harbour/INSTALL
+++ b/harbour/INSTALL
@@ -1116,7 +1116,7 @@ HARBOUR
       ---
 
       --- MSVC 2012 for Windows x86-64 (requires preceding build for native target)
-      call "%ProgramFiles(x86)%\Microsoft Visual Studio 11.0\VC\vcvarsall.bat" amd64
+      call "%ProgramFiles(x86)%\Microsoft Visual Studio 11.0\VC\vcvarsall.bat" x86_amd64
       win-make
       ---