diff --git a/resources/image_test.go b/resources/image_test.go
index dc5e0a217..6d879d271 100644
--- a/resources/image_test.go
+++ b/resources/image_test.go
@@ -366,7 +366,7 @@ func BenchmarkImageExif(b *testing.B) {
 		spec := newTestResourceSpec(specDescriptor{fs: fs, c: c})
 		images := make([]resource.Image, b.N)
 		for i := 0; i < b.N; i++ {
-			images[i] = fetchImageForSpec(spec, c, "sunset.jpg")
+			images[i] = fetchResourceForSpec(spec, c, "sunset.jpg", strconv.Itoa(i)).(resource.Image)
 		}
 		return images
 	}
diff --git a/resources/testhelpers_test.go b/resources/testhelpers_test.go
index bc24fb8f2..3e0725452 100644
--- a/resources/testhelpers_test.go
+++ b/resources/testhelpers_test.go
@@ -154,10 +154,14 @@ func fetchImageForSpec(spec *Spec, c *qt.C, name string) resource.Image {
 	return img
 }
 
-func fetchResourceForSpec(spec *Spec, c *qt.C, name string) resource.ContentResource {
+func fetchResourceForSpec(spec *Spec, c *qt.C, name string, targetPathAddends ...string) resource.ContentResource {
 	src, err := os.Open(filepath.FromSlash("testdata/" + name))
 	c.Assert(err, qt.IsNil)
 	workDir := spec.WorkingDir
+	if len(targetPathAddends) > 0 {
+		addends := strings.Join(targetPathAddends, "_")
+		name = addends + "_" + name
+	}
 	targetFilename := filepath.Join(workDir, name)
 	out, err := helpers.OpenFileForWriting(spec.Fs.Source, targetFilename)
 	c.Assert(err, qt.IsNil)