diff --git a/cmd/server/tests/worker_test.go b/cmd/server/tests/worker_test.go
index 6dc6642..3aa30c7 100644
--- a/cmd/server/tests/worker_test.go
+++ b/cmd/server/tests/worker_test.go
@@ -219,6 +219,13 @@ func TestWorker_ConcurrentJobs(t *testing.T) {
 			FolderPath: tmpDir,
 		})
 		require.NoError(t, err)
+
+		// Create test files in each directory
+		for j := 0; j < 2; j++ {
+			filePath := filepath.Join(tmpDir, fmt.Sprintf("book%d.epub", j))
+			err = os.WriteFile(filePath, []byte(fmt.Sprintf("test content %d", j)), 0644)
+			require.NoError(t, err, "Failed to create test file")
+		}
 	}
 
 	// Submit multiple concurrent jobs