diff --git a/cmd/preflight/cli/run.go b/cmd/preflight/cli/run.go
index 0b4ed7ec..f6fc06bb 100644
--- a/cmd/preflight/cli/run.go
+++ b/cmd/preflight/cli/run.go
@@ -177,7 +177,7 @@ func parseTimeFlags(v *viper.Viper, progressChan chan interface{}, collectors []
 	)
 	if v.GetString("since-time") != "" {
 		if v.GetString("since") != "" {
-			return errors.Errorf("at most one of `sinceTime` or `sinceSeconds` may be specified")
+			return errors.Errorf("at most one of `sinceTime` or `since` may be specified")
 		}
 		sinceTime, err = time.Parse(time.RFC3339, v.GetString("since-time"))
 		if err != nil {
diff --git a/cmd/troubleshoot/cli/run.go b/cmd/troubleshoot/cli/run.go
index 98b124e1..9efc6ea6 100644
--- a/cmd/troubleshoot/cli/run.go
+++ b/cmd/troubleshoot/cli/run.go
@@ -694,7 +694,7 @@ func parseTimeFlags(v *viper.Viper, progressChan chan interface{}, collectors *c
 	)
 	if v.GetString("since-time") != "" {
 		if v.GetString("since") != "" {
-			return errors.Errorf("Only one of since-time / since may be used. The flag since-time will be used.")
+			return errors.Errorf("at most one of `sinceTime` or `since` may be specified")
 		}
 		sinceTime, err = time.Parse(time.RFC3339, v.GetString("since-time"))
 		if err != nil {