diff --git a/pkg/normalize/flatten.go b/pkg/normalize/flatten.go
index cc5122b33..02f8de818 100644
--- a/pkg/normalize/flatten.go
+++ b/pkg/normalize/flatten.go
@@ -71,7 +71,7 @@ func flattenSPFs(cfg *models.DNSConfig) []error {
 			if err := cache.Save("spfcache.updated.json"); err != nil {
 				errs = append(errs, err)
 			} else {
-				errs = append(errs, Warning{fmt.Errorf("%d spf record lookups are out of date with cache (%s). Wrote changes to dnscache.updated.json. Please rename and commit", len(changed), strings.Join(changed, ","))})
+				errs = append(errs, Warning{fmt.Errorf("%d spf record lookups are out of date with cache (%s). Wrote changes to spfcache.updated.json. Please rename and commit:\nmv spfcache.updated.json spfcache.json", len(changed), strings.Join(changed, ","))})
 			}
 		}
 	}
diff --git a/pkg/spflib/resolver.go b/pkg/spflib/resolver.go
index e0997aa05..d01a46a57 100644
--- a/pkg/spflib/resolver.go
+++ b/pkg/spflib/resolver.go
@@ -125,11 +125,15 @@ func (c *cache) ResolveErrors() (errs []error) {
 	return
 }
 func (c *cache) Save(filename string) error {
-	for _, entry := range c.records {
+	outRecs := make(map[string]*cacheEntry, len(c.records))
+	for k, entry := range c.records {
+		// move resolved data into cached field
+		// only take those we actually resolved
 		if entry.resolvedSPF != "" {
 			entry.SPF = entry.resolvedSPF
+			outRecs[k] = entry
 		}
 	}
-	dat, _ := json.MarshalIndent(c.records, "", "  ")
+	dat, _ := json.MarshalIndent(outRecs, "", "  ")
 	return ioutil.WriteFile(filename, dat, 0644)
 }