diff --git a/.github/workflows/build_windows.yaml b/.github/workflows/build_windows.yaml
index 7b2bb52..3e42d6a 100644
--- a/.github/workflows/build_windows.yaml
+++ b/.github/workflows/build_windows.yaml
@@ -144,8 +144,8 @@ jobs:
                   $Thumbprint = $CodeSigningCert.Thumbprint
                   $SubjectName = ($CodeSigningCert.Subject -replace ", ?", "`n" | ConvertFrom-StringData).CN
 
-                  echo "ED_SIGNTOOL_THUMBPRINT=$Thumbprint" >> $GITHUB_ENV
-                  echo "ED_SIGNTOOL_SUBJECT_NAME=$SubjectName" >> $GITHUB_ENV
+                  echo "ED_SIGNTOOL_THUMBPRINT=$Thumbprint" >> $env:GITHUB_ENV
+                  echo "ED_SIGNTOOL_SUBJECT_NAME=$SubjectName" >> $env:GITHUB_ENV
               env:
                   INSTALL_DIR: C:\Users\runneradmin\eSignerCKA
                   MASTER_KEY_FILE: C:\Users\runneradmin\eSignerCKA\master.key