diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0a800f8..186a1fc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -445,6 +445,29 @@ jobs:
             MYSECRET=foo
             INVALID_SECRET=
 
+  secret-files:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4.0.0
+        with:
+          version: ${{ inputs.buildx-version || env.BUILDX_VERSION }}
+          driver-opts: |
+            image=${{ inputs.buildkit-image || env.BUILDKIT_IMAGE }}
+      -
+        name: Build
+        uses: ./
+        with:
+          context: .
+          file: ./test/secret.Dockerfile
+          secret-files: |
+            MYSECRET=./test/secret.txt
+            INVALID_SECRET=
+
   secret-envs:
     runs-on: ubuntu-latest
     steps:
diff --git a/__tests__/context.test.ts b/__tests__/context.test.ts
index 25ece9a..cb3f31c 100644
--- a/__tests__/context.test.ts
+++ b/__tests__/context.test.ts
@@ -389,7 +389,7 @@ ccc`],
         'build',
         '--file', './test/Dockerfile',
         '--iidfile', imageIDFilePath,
-        '--secret', `id=MY_SECRET,src=${tmpName}`,
+        '--secret', `id=MY_SECRET,src=${path.join(fixturesDir, 'secret.txt')}`,
         '--builder', 'builder-git-context-2',
         '--network', 'host',
         '--push',
diff --git a/test/secret.txt b/test/secret.txt
new file mode 100644
index 0000000..1910281
--- /dev/null
+++ b/test/secret.txt
@@ -0,0 +1 @@
+foo
\ No newline at end of file