diff --git a/.github/workflows/macos-precompile.yml b/.github/workflows/macos-precompile.yml
index 4afd6f4..f02dcbf 100644
--- a/.github/workflows/macos-precompile.yml
+++ b/.github/workflows/macos-precompile.yml
@@ -32,7 +32,7 @@ jobs:
         id: cache-otp
         with:
           path: ./cache/otp
-          key: ${{ runner.os }}-otp-${{ matrix.otp_version }}
+          key: ${{ runner.os }}-otp-${{ matrix.arch }}-${{ matrix.job.otp }}
 
       - name: Install OTP
         run: |