diff --git a/.github/workflows/build_mac.yml b/.github/workflows/build_mac.yml
index c12bba8..95b9cf3 100644
--- a/.github/workflows/build_mac.yml
+++ b/.github/workflows/build_mac.yml
@@ -21,7 +21,7 @@ jobs:
           MACOS_CERTIFICATE_PWD: ${{ secrets.MACOS_CERTIFICATE_PWD }}
           MACOS_KEYCHAIN_PASSWORD: ${{ secrets.MACOS_KEYCHAIN_PASSWORD }}
         run: |
-          echo $MACOS_CERTIFICATE | base64 —decode > certificate.p12
+          echo $MACOS_CERTIFICATE | base64 --decode > certificate.p12
           security create-keychain -p $MACOS_KEYCHAIN_PASSWORD build.keychain security default-keychain -s build.keychain
           security unlock-keychain -p $MACOS_KEYCHAIN_PASSWORD build.keychain
           security import certificate.p12 -k build.keychain -P $MACOS_CERTIFICATE_PWD -T /usr/bin/codesign