diff --git a/build.cmd b/build.cmd
index f2df47c..d72b240 100644
--- a/build.cmd
+++ b/build.cmd
@@ -1,6 +1,5 @@
 @echo off
 
-set DEFS=
 set DIR_ROOT=%~dp0.
 set DIR_PROGMGR=%DIR_ROOT%\progmgr
 set DIR_RELEASE=%DIR_ROOT%\release
@@ -8,18 +7,22 @@ set DIR_RELEASE=%DIR_ROOT%\release
 rmdir /S /Q "%DIR_RELEASE%" > nul 2>&1
 if not exist "%DIR_RELEASE%" mkdir "%DIR_RELEASE%"
 
+git rev-parse HEAD > %DIR_RELEASE%\.git_hash
+set /P GIT_HASH=<%DIR_RELEASE%\.git_hash
+set "GIT_HASH=%GIT_HASH:~0,8%"
+
 if "%1" == "debug" (
-    set CL=/MT /Od /Zi /RTC1 /Fdprogmgr.pdb /fsanitize=address /DUNICODE %DEFS%
+    set CL=/MT /Od /Zi /RTC1 /Fdprogmgr.pdb /fsanitize=address /DUNICODE /DPROGMGR_GIT_HASH="%GIT_HASH%"
     set LINK=/DEBUG
 ) else (
-    set CL=/O1 /GS- /DUNICODE /DNDEBUG /DPROGMGR_NO_CRT %DEFS%
+    set CL=/O1 /GS- /DUNICODE /DNDEBUG /DPROGMGR_NO_CRT /DPROGMGR_GIT_HASH="%GIT_HASH%"
     set LINK=/NODEFAULTLIB /OPT:REF /OPT:ICF
 )
 
 pushd "%DIR_RELEASE%"
-rc /nologo /i "%DIR_PROGMGR%" "%DIR_PROGMGR%\lang\dlg_en-US.rc"
-rc /nologo /i "%DIR_PROGMGR%" "%DIR_PROGMGR%\lang\res_en-US.rc"
-rc /nologo /i "%DIR_PROGMGR%" "%DIR_PROGMGR%\resource.rc"
+rc /nologo /DPROGMGR_GIT_HASH="""%GIT_HASH%""" /i "%DIR_PROGMGR%" "%DIR_PROGMGR%\lang\dlg_en-US.rc"
+rc /nologo /DPROGMGR_GIT_HASH="""%GIT_HASH%""" /i "%DIR_PROGMGR%" "%DIR_PROGMGR%\lang\res_en-US.rc"
+rc /nologo /DPROGMGR_GIT_HASH="""%GIT_HASH%""" /i "%DIR_PROGMGR%" "%DIR_PROGMGR%\resource.rc"
 cl /nologo /W3 /WX /MP /Feprogmgr.exe ^
     "%DIR_PROGMGR%\*.c" ^
     "%DIR_PROGMGR%\resource.res" ^
diff --git a/progmgr/resource.rc b/progmgr/resource.rc
index 65fc50d..65b0f4f 100644
--- a/progmgr/resource.rc
+++ b/progmgr/resource.rc
@@ -57,7 +57,7 @@ BEGIN
 			VALUE "LegalCopyright",   VER_LEGALCOPYRIGHT_STR "\0"
 			VALUE "OriginalFilename", VER_ORIGINALFILENAME_STR "\0"
 			VALUE "ProductName",      VER_PRODUCTNAME_STR
-			VALUE "ProductVersion",   VER_PRODUCTVERSION_STR "\0"
+			VALUE "ProductVersion",   "git-" PROGMGR_GIT_HASH "\0"
 		END
 	END
 	BLOCK "VarFileInfo"