diff --git a/.github/workflows/rust-ci.yml b/.github/workflows/rust-ci.yml
index 7d02c95dee..b66125da3b 100644
--- a/.github/workflows/rust-ci.yml
+++ b/.github/workflows/rust-ci.yml
@@ -109,6 +109,9 @@ jobs:
           - runner: ubuntu-24.04
             target: x86_64-unknown-linux-musl
             profile: release
+          - runner: windows-latest
+            target: x86_64-pc-windows-msvc
+            profile: release
 
     steps:
       - uses: actions/checkout@v5
diff --git a/.github/workflows/rust-release.yml b/.github/workflows/rust-release.yml
index 0044b864c7..a6d8128a3e 100644
--- a/.github/workflows/rust-release.yml
+++ b/.github/workflows/rust-release.yml
@@ -87,7 +87,7 @@ jobs:
             ~/.cargo/registry/cache/
             ~/.cargo/git/db/
             ${{ github.workspace }}/codex-rs/target/
-          key: cargo-release-${{ matrix.runner }}-${{ matrix.target }}-release-${{ hashFiles('**/Cargo.lock') }}
+          key: cargo-${{ matrix.runner }}-${{ matrix.target }}-release-${{ hashFiles('**/Cargo.lock') }}
 
       - if: ${{ matrix.target == 'x86_64-unknown-linux-musl' || matrix.target == 'aarch64-unknown-linux-musl'}}
         name: Install musl build tools