diff --git a/pkg/api/core/image/delta_test.go b/pkg/api/core/image/delta_test.go
index 2fcc21ae..f205783b 100644
--- a/pkg/api/core/image/delta_test.go
+++ b/pkg/api/core/image/delta_test.go
@@ -78,9 +78,11 @@ var _ = Describe("Delta", func() {
 				)
 				Expect(err).ToNot(HaveOccurred())
 				defer os.RemoveAll(tmpdir) // clean up
-				Expect(file.Exists(filepath.Join(tmpdir, "home"))).To(BeFalse())
+				// Cache from go
 				Expect(file.Exists(filepath.Join(tmpdir, "root", ".cache"))).To(BeTrue())
+				// sh is present from alpine, hence not in the result
 				Expect(file.Exists(filepath.Join(tmpdir, "bin", "sh"))).To(BeFalse())
+				// /usr/local/go is part of golang:alpine
 				Expect(file.Exists(filepath.Join(tmpdir, "usr", "local", "go"))).To(BeTrue())
 				Expect(file.Exists(filepath.Join(tmpdir, "usr", "local", "go", "bin"))).To(BeTrue())
 			})
diff --git a/pkg/api/core/image/mutator_suite_test.go b/pkg/api/core/image/mutator_suite_test.go
index 1e96c3b1..ba760f8a 100644
--- a/pkg/api/core/image/mutator_suite_test.go
+++ b/pkg/api/core/image/mutator_suite_test.go
@@ -24,11 +24,11 @@ import (
 	. "github.com/onsi/gomega"
 )
 
-func TestMutator(t *testing.T) {
+func TestImageApi(t *testing.T) {
 	RegisterFailHandler(Fail)
 	b := backend.NewSimpleDockerBackend(context.NewContext())
 	b.DownloadImage(backend.Options{ImageName: "alpine"})
 	b.DownloadImage(backend.Options{ImageName: "golang:alpine"})
 
-	RunSpecs(t, "Mutator API Suite")
+	RunSpecs(t, "Image API Suite")
 }