diff --git a/pkg/cluster/mock/mock.go b/pkg/cluster/mock/mock.go
index 7d2853ca6..acd835c9a 100644
--- a/pkg/cluster/mock/mock.go
+++ b/pkg/cluster/mock/mock.go
@@ -81,9 +81,9 @@ func (m *Mock) CreateManifestPatch(originalManifests, modifiedManifests []byte,
 }
 
 func (m *Mock) ApplyManifestPatch(originalManifests, patch []byte, originalSource, patchSource string) ([]byte, error) {
-	return m.ApplyManifestPatch(originalManifests, patch, originalSource, patchSource)
+	return m.ApplyManifestPatchFunc(originalManifests, patch, originalSource, patchSource)
 }
 
 func (m *Mock) AppendManifestToBuffer(b []byte, buf *bytes.Buffer) error {
-	return m.AppendManifestToBuffer(b, buf)
+	return m.AppendManifestToBufferFunc(b, buf)
 }