diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index ea2c88f9416..477daf2dda8 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -34,23 +34,20 @@ jobs:
         with:
           path: spec/Cache
           key: ${{ github.event.pull_request.base.sha }}
+      - if: ${{ steps.cache-builds.outputs.cache-hit != 'true' }}
+        name: Save changes to tests files
+        run: cp -r .busted spec /tmp/
       - if: ${{ steps.cache-builds.outputs.cache-hit != 'true' }}
         name: Checkout dev
         uses: actions/checkout@v4
         with:
           ref: 'dev'
       - if: ${{ steps.cache-builds.outputs.cache-hit != 'true' }}
-        name: Checkout new test related files in case they changed
-        uses: actions/checkout@v4
-        with:
-          ref: ${{ github.event.pull_request.head.sha }}
-          sparse-checkout-cone-mode: false
-          sparse-checkout: |
-            .busted
-            spec/*
+        name: Patch dev with latest tests files
+        run: rm -rf .busted spec && cp -r /tmp/.busted /tmp/spec .
       - if: ${{ steps.cache-builds.outputs.cache-hit != 'true' }}
         name: Generate builds in reference to dev branch
-        run: BUILDCACHEPREFIX='${{ github.workspace }}/spec/Cache' busted --lua=luajit -r generate
+        run: BUILDCACHEPREFIX='./spec/Cache' busted --lua=luajit -r generate
       - name: Display differences
         run: >
           for build in spec/Cache/*.lua;
diff --git a/spec/GenerateBuilds.lua b/spec/GenerateBuilds.lua
index 70828ab63c9..e6f1b19b0cd 100644
--- a/spec/GenerateBuilds.lua
+++ b/spec/GenerateBuilds.lua
@@ -45,7 +45,7 @@ local buildList = fetchBuilds("../spec/TestBuilds")
 
 
 for filename, testBuild in pairs(buildList) do
-    print("[+] Computing " .. filename)
+    print("[+] Computing " .. filename:gsub("(.+)%..+$", (os.getenv("BUILDCACHEPREFIX") or "/tmp") .. "/%1.lua"))
     loadBuildFromXML(testBuild)
     local fileHnd, errMsg = io.open(filename:gsub("(.+)%..+$", (os.getenv("BUILDCACHEPREFIX") or "/tmp") .. "/%1.lua"), "w+")
     fileHnd:write(testBuild)