diff --git a/build.bat b/build.bat
index a45be78b4..ca4e966f3 100644
--- a/build.bat
+++ b/build.bat
@@ -45,6 +45,11 @@ echo WEASEL_ROOT=%WEASEL_ROOT%
 echo WEASEL_BUNDLED_RECIPES=%WEASEL_BUNDLED_RECIPES%
 echo.
 
+if defined GITHUB_ENV (
+	setlocal enabledelayedexpansion
+	echo git_ref_name=%PRODUCT_VERSION%>>!GITHUB_ENV!
+)
+
 if defined BOOST_ROOT (
   if exist "%BOOST_ROOT%\boost" goto boost_found
 )
diff --git a/xbuild.bat b/xbuild.bat
index 5ebacb4f1..c8a50fde6 100644
--- a/xbuild.bat
+++ b/xbuild.bat
@@ -54,6 +54,12 @@ echo WEASEL_BUILD=%WEASEL_BUILD%
 echo WEASEL_ROOT=%WEASEL_ROOT%
 echo WEASEL_BUNDLED_RECIPES=%WEASEL_BUNDLED_RECIPES%
 echo BOOST_ROOT=%BOOST_ROOT%
+
+if defined GITHUB_ENV (
+	setlocal enabledelayedexpansion
+	echo git_ref_name=%PRODUCT_VERSION%>>!GITHUB_ENV!
+)
+
 rem ---------------------------------------------------------------------------
 rem parse the command line options
 set build_config=release