diff --git a/.github/workflows/c-cpp.yml b/.github/workflows/c-cpp.yml
index fcb8970..f5d3476 100644
--- a/.github/workflows/c-cpp.yml
+++ b/.github/workflows/c-cpp.yml
@@ -32,9 +32,9 @@ jobs:
     - name: ln Mac
       if: ${{ startsWith(matrix.target, 'macos') }}
       run: ln -s Makefile.FreeBSD Makefile
-    - name: Mac libraries
+    - name: Mac variables
       if: ${{ startsWith(matrix.target, 'macos') }}
-      run: brew install openssl
+      run: echo "LDFLAGS=-L/usr/local/opt/openssl/lib -L/opt/homebrew/opt/openssl/lib" >> $GITHUB_ENV && echo "CPPFLAGS=-I/usr/local/opt/openssl/include -I/opt/homebrew/opt/openssl/include" >> $GITHUB_ENV
     - name: ln Windows
       if: ${{ startsWith(matrix.target, 'windows') }}
       run: copy Makefile.win Makefile