diff --git a/context_file_test.go b/context_file_test.go
index 47c37852..50cc3c8e 100644
--- a/context_file_test.go
+++ b/context_file_test.go
@@ -11,7 +11,7 @@ import (
 // TestContextFileSimple tests the Context.File() method with a simple case
 func TestContextFileSimple(t *testing.T) {
 	// Test serving an existing file
-	testFile := "test_file.txt"
+	testFile := "testdata/test_file.txt"
 	w := httptest.NewRecorder()
 	c, _ := CreateTestContext(w)
 	c.Request = httptest.NewRequest(http.MethodGet, "/test", nil)
diff --git a/context_test.go b/context_test.go
index bca9e40b..0985cfce 100644
--- a/context_test.go
+++ b/context_test.go
@@ -80,7 +80,7 @@ func TestContextFile(t *testing.T) {
 	// Test serving an existing file
 	t.Run("serve existing file", func(t *testing.T) {
 		// Create a temporary test file
-		testFile := "test_file.txt"
+		testFile := "testdata/test_file.txt"
 
 		w := httptest.NewRecorder()
 		c, _ := CreateTestContext(w)
@@ -118,7 +118,7 @@ func TestContextFile(t *testing.T) {
 
 	// Test with HEAD request
 	t.Run("HEAD request", func(t *testing.T) {
-		testFile := "test_file.txt"
+		testFile := "testdata/test_file.txt"
 
 		w := httptest.NewRecorder()
 		c, _ := CreateTestContext(w)
@@ -133,7 +133,7 @@ func TestContextFile(t *testing.T) {
 
 	// Test with Range request
 	t.Run("Range request", func(t *testing.T) {
-		testFile := "test_file.txt"
+		testFile := "testdata/test_file.txt"
 
 		w := httptest.NewRecorder()
 		c, _ := CreateTestContext(w)