diff --git a/docs/Single-server-VictoriaMetrics.md b/docs/Single-server-VictoriaMetrics.md
index a860204e9..512d0a0a9 100644
--- a/docs/Single-server-VictoriaMetrics.md
+++ b/docs/Single-server-VictoriaMetrics.md
@@ -892,7 +892,8 @@ with the enabled de-duplication. See [this section](#deduplication) for details.
 
 VictoriaMetrics de-duplicates data points if `-dedup.minScrapeInterval` command-line flag
 is set to positive duration. For example, `-dedup.minScrapeInterval=60s` would de-duplicate data points
-on the same time series if they are located closer than 60s to each other.
+on the same time series if they fall within the same discrete 60s bucket.  The earliest data point will be kept.  In the case of equal timestamps, an arbitrary data point will be kept.
+
 The de-duplication reduces disk space usage if multiple identically configured Prometheus instances in HA pair
 write data to the same VictoriaMetrics instance. Note that these Prometheus instances must have identical
 `external_labels` section in their configs, so they write data to the same time series.