diff --git a/.github/workflows/back-compat-pr.yml b/.github/workflows/back-compat-pr.yml
index 3be0730..e8c8c93 100644
--- a/.github/workflows/back-compat-pr.yml
+++ b/.github/workflows/back-compat-pr.yml
@@ -24,16 +24,20 @@ jobs:
       with:
         go-version: ${{ env.GO_VERSION }}
     - name: build head
-      run: go build -o omm_head
+      run: |
+        go build -o omm_head
+        cp omm_head /var/tmp
     - uses: actions/checkout@v4
       with:
         ref: main
     - name: build main
-      run: go build -o omm_main
+      run: |
+        go build -o omm_main
+        cp omm_main /var/tmp
     - name: Run last version
       run: |
-        ./omm_main --db-path=omm-test.db 'test: a task from main'
+        /var/tmp/omm_main --db-path=omm-test.db 'test: a task from main'
     - name: Run current version
       run: |
-        ./omm_head --db-path=omm-test.db 'test: a task from the current version'
-        ./omm_head --db-path=omm-test.db tasks
+        /var/tmp/omm_head --db-path=omm-test.db 'test: a task from PR HEAD'
+        /var/tmp/omm_head --db-path=omm-test.db tasks