diff --git a/ci/utils/nwrfcsdk-version.bat b/ci/utils/nwrfcsdk-version.bat
index 29e8d57..9477bb8 100644
--- a/ci/utils/nwrfcsdk-version.bat
+++ b/ci/utils/nwrfcsdk-version.bat
@@ -3,4 +3,4 @@
 :: SPDX-License-Identifier: Apache-2.0
 
 @echo off
-findstr Patch %SAPNWRFC_HOME%\lib\sapnwrfc.dll
+findstr Patch $env:SAPNWRFC_HOME\lib\sapnwrfc.dll