diff --git a/README.md b/README.md
index 0f36eadb..8958425e 100644
--- a/README.md
+++ b/README.md
@@ -361,7 +361,7 @@ Next time you need this list just use an alias, like this:
             - `hide_pcb_info`: [boolean=false] Hide project information.
             - `hide_stats_info`: [boolean=false] Hide statistics information.
             - `quote_all`: [boolean=false] Enclose all values using double quotes.
-            - `separator`: [string=','] CSV Separator.
+            - `separator`: [string=','] CSV Separator. TXT and TSV always use tab as delimiter.
         - `exclude_any`: [list(dict)] A series of regular expressions used to exclude parts.
                          If a component matches ANY of these, it will be excluded.
                          Column names are case-insensitive.
diff --git a/docs/samples/generic_plot.kiplot.yaml b/docs/samples/generic_plot.kiplot.yaml
index e0b7c02a..3999619f 100644
--- a/docs/samples/generic_plot.kiplot.yaml
+++ b/docs/samples/generic_plot.kiplot.yaml
@@ -59,7 +59,7 @@ outputs:
         hide_stats_info: false
         # [boolean=false] Enclose all values using double quotes
         quote_all: false
-        # [string=','] CSV Separator
+        # [string=','] CSV Separator. TXT and TSV always use tab as delimiter
         separator: ','
       # [list(dict)] A series of regular expressions used to exclude parts.
       # If a component matches ANY of these, it will be excluded.