diff --git a/contrib/implements/internal/implements/gosrc.go b/contrib/implements/internal/implements/gosrc.go
index 6c8230b..02e8552 100644
--- a/contrib/implements/internal/implements/gosrc.go
+++ b/contrib/implements/internal/implements/gosrc.go
@@ -190,6 +190,9 @@ func CephGoFunctions(source, packageName string, ii *Inspector) error {
 	toCheck := []string{}
 	toCheck = append(toCheck, p.GoFiles...)
 	toCheck = append(toCheck, p.CgoFiles...)
+	for _, fname := range p.IgnoredGoFiles {
+		logger.Printf("Ignored go file: %v\n", fname)
+	}
 	for _, fname := range toCheck {
 		logger.Printf("Reading go file: %v\n", fname)
 		src, err := ioutil.ReadFile(path.Join(p.Dir, fname))
@@ -209,3 +212,7 @@ func CephGoFunctions(source, packageName string, ii *Inspector) error {
 	}
 	return nil
 }
+
+func init() {
+	build.Default.BuildTags = append(build.Default.BuildTags, "ceph_preview")
+}