diff --git a/plugins/processors/lookup/README.md b/plugins/processors/lookup/README.md
index a1380243b..b5ff36a82 100644
--- a/plugins/processors/lookup/README.md
+++ b/plugins/processors/lookup/README.md
@@ -90,7 +90,7 @@ keyB,tag-name1,tag-value1
 keyZ,tag-name1,tag-value1,...,tag-nameM,tag-valueM
 ```
 
-The formatting uses colons (`,`) as separators and allows for comments defined
+The formatting uses commas (`,`) as separators and allows for comments defined
 as lines starting with a hash (`#`). All lines can have different numbers but
 must at least contain three columns and follow the name/value pair format, i.e.
 there cannot be a name without value.
@@ -108,7 +108,7 @@ keyB,tag-value1,,,,...,
 keyZ,tag-value1,...,tag-valueM,...,
 ```
 
-The formatting uses colons (`,`) as separators and allows for comments defined
+The formatting uses commas (`,`) as separators and allows for comments defined
 as lines starting with a hash (`#`). All lines __must__ contain the same number
 of columns. The first non-comment line __must__ contain a header specifying the
 tag-names. As the first column contains the key to match the first header value