diff --git a/.github/workflows/build-osx.yml b/.github/workflows/build-osx.yml
index 45c435fb..50672d26 100644
--- a/.github/workflows/build-osx.yml
+++ b/.github/workflows/build-osx.yml
@@ -17,4 +17,4 @@ jobs:
         brew update
         brew install boost miniupnpc openssl@1.1
     - name: build application
-      run: make HOMEBREW=1 USE_UPNP=${{ matrix.with_upnp }} -j3
+      run: make HOMEBREW=1 USE_UPNP=${{ matrix.with_upnp }} PREFIX=$GITHUB_WORKSPACE/output -j3