diff --git a/cmd/thanos/compact.go b/cmd/thanos/compact.go
index 06fde49656..bad0c7f4a2 100644
--- a/cmd/thanos/compact.go
+++ b/cmd/thanos/compact.go
@@ -390,14 +390,14 @@ func runCompact(
 	if retentionByResolution[compact.ResolutionLevelRaw].Seconds() != 0 {
 		// If downsampling is enabled, error if raw retention is not sufficient for downsampling to occur (upper bound 10 days for 1h resolution)
 		if !conf.disableDownsampling && retentionByResolution[compact.ResolutionLevelRaw].Seconds() < downsample.ResLevel1DownsampleRange {
-			return errors.New("raw resolution must be higher than the minimum block size after which 1h resolution downsampling will occur (40 hours)")
+			return errors.New("raw resolution must be higher than the minimum block size after which 5m resolution downsampling will occur (40 hours)")
 		}
 		level.Info(logger).Log("msg", "retention policy of raw samples is enabled", "duration", retentionByResolution[compact.ResolutionLevelRaw])
 	}
 	if retentionByResolution[compact.ResolutionLevel5m].Seconds() != 0 {
 		// If retention is lower than minimum downsample range, then no downsampling at this resolution will be persisted
 		if !conf.disableDownsampling && retentionByResolution[compact.ResolutionLevel5m].Seconds() < downsample.ResLevel2DownsampleRange {
-			return errors.New("5m resolution retention must be higher than the minimum block size after which 5m resolution downsampling will occur (10 days)")
+			return errors.New("5m resolution retention must be higher than the minimum block size after which 1h resolution downsampling will occur (10 days)")
 		}
 		level.Info(logger).Log("msg", "retention policy of 5 min aggregated samples is enabled", "duration", retentionByResolution[compact.ResolutionLevel5m])
 	}
diff --git a/test/e2e/e2ethanos/services.go b/test/e2e/e2ethanos/services.go
index 02bb35e467..480e681461 100644
--- a/test/e2e/e2ethanos/services.go
+++ b/test/e2e/e2ethanos/services.go
@@ -735,6 +735,7 @@ func NewCompactor(e e2e.Environment, name string, bucketConfig client.BucketConf
 				"--selector.relabel-config": string(relabelConfigBytes),
 				"--wait":                    "",
 			}), extArgs...)...),
+			Readiness:        e2e.NewHTTPReadinessProbe("http", "/-/ready", 200, 200),
 			User:             strconv.Itoa(os.Getuid()),
 			WaitReadyBackoff: &defaultBackoffConfig,
 		},