diff --git a/plugins/inputs/modbus/README.md b/plugins/inputs/modbus/README.md
index 76e8290933914..bc6be145230b4 100644
--- a/plugins/inputs/modbus/README.md
+++ b/plugins/inputs/modbus/README.md
@@ -69,6 +69,11 @@ See the [CONFIGURATION.md][CONFIGURATION.md] for more details.
   ##  |---metric   -- define fields on a metric base
   configuration_type = "register"
 
+  ## Exclude the register type tag
+  ## Please note, this will also influence the grouping of metrics as you won't
+  ## see one metric per register type anymore!
+  # exclude_register_type_tag = false
+
   ## --- "register" configuration style ---
 
   ## Measurements
diff --git a/plugins/inputs/modbus/sample_general_begin.conf b/plugins/inputs/modbus/sample_general_begin.conf
index cc1c94eb2d831..e1688a9f30f78 100644
--- a/plugins/inputs/modbus/sample_general_begin.conf
+++ b/plugins/inputs/modbus/sample_general_begin.conf
@@ -54,4 +54,4 @@
   ## Exclude the register type tag
   ## Please note, this will also influence the grouping of metrics as you won't
   ## see one metric per register type anymore!
-  # exclude_register_type_tag = false
\ No newline at end of file
+  # exclude_register_type_tag = false