diff --git a/plugins/inputs/prometheus/sample.conf b/plugins/inputs/prometheus/sample.conf
index 6349fa304..34945169a 100644
--- a/plugins/inputs/prometheus/sample.conf
+++ b/plugins/inputs/prometheus/sample.conf
@@ -3,13 +3,9 @@
   ## An array of urls to scrape metrics from.
   urls = ["http://localhost:9100/metrics"]
   
-  ## Metric version controls the mapping from Prometheus metrics into
-  ## Telegraf metrics.  When using the prometheus_client output, use the same
-  ## value in both plugins to ensure metrics are round-tripped without
-  ## modification.
-  ##
-  ##   example: metric_version = 1; 
-  ##            metric_version = 2; recommended version
+  ## Metric version controls the mapping from Prometheus metrics into Telegraf metrics.
+  ## See "Metric Format Configuration" in plugins/inputs/prometheus/README.md for details.
+  ## Valid options: 1, 2
   # metric_version = 1
   
   ## Url tag name (tag containing scrapped url. optional, default is "url")
diff --git a/plugins/outputs/prometheus_client/sample.conf b/plugins/outputs/prometheus_client/sample.conf
index 23118d5fb..762b25680 100644
--- a/plugins/outputs/prometheus_client/sample.conf
+++ b/plugins/outputs/prometheus_client/sample.conf
@@ -3,12 +3,9 @@
   ## Address to listen on.
   listen = ":9273"
 
-  ## Metric version controls the mapping from Telegraf metrics into
-  ## Prometheus format.  When using the prometheus input, use the same value in
-  ## both plugins to ensure metrics are round-tripped without modification.
-  ##
-  ##   example: metric_version = 1;
-  ##            metric_version = 2; recommended version
+  ## Metric version controls the mapping from Prometheus metrics into Telegraf metrics.
+  ## See "Metric Format Configuration" in plugins/inputs/prometheus/README.md for details.
+  ## Valid options: 1, 2
   # metric_version = 1
 
   ## Use HTTP Basic Authentication.