diff --git a/action.yml b/action.yml
index c398b02..5e9f759 100644
--- a/action.yml
+++ b/action.yml
@@ -60,11 +60,16 @@ runs:
         components: ${{inputs.components}}
       shell: bash
 
+    - run: |
+        : set $CARGO_HOME
+        echo CARGO_HOME=${CARGO_HOME:-${{runner.os == 'Windows' && '$USERPROFILE' || '$HOME'}}/.cargo} >> $GITHUB_ENV
+      shell: bash
+
     - run: |
         : install rustup if needed
         if ! command -v rustup &>/dev/null; then
           curl --proto '=https' --tlsv1.2 --retry 10 --retry-connrefused --location --silent --show-error --fail "https://sh.rustup.rs" | sh -s -- --default-toolchain none -y
-          echo "${CARGO_HOME:-$HOME/.cargo}/bin" >> $GITHUB_PATH
+          echo "$CARGO_HOME/bin" >> $GITHUB_PATH
         fi
       if: runner.os != 'Windows'
       shell: bash