diff --git a/cmd/promtool/rules.go b/cmd/promtool/rules.go
index 75faa1b60..e19b1605e 100644
--- a/cmd/promtool/rules.go
+++ b/cmd/promtool/rules.go
@@ -57,7 +57,7 @@ type ruleImporterConfig struct {
 // newRuleImporter creates a new rule importer that can be used to parse and evaluate recording rule files and create new series
 // written to disk in blocks.
 func newRuleImporter(logger log.Logger, config ruleImporterConfig, apiClient queryRangeAPI) *ruleImporter {
-	level.Info(logger).Log("backfiller", "new rule importer from start", config.start.Format(time.RFC822), " to end", config.end.Format(time.RFC822))
+	level.Info(logger).Log("backfiller", "new rule importer", "start", config.start.Format(time.RFC822), "end", config.end.Format(time.RFC822))
 	return &ruleImporter{
 		logger:      logger,
 		config:      config,