diff --git a/README.md b/README.md
index 74aed91..1bcf564 100644
--- a/README.md
+++ b/README.md
@@ -67,12 +67,12 @@ Datetime, Type, Description
 ## Parameters
 
 ```
-./uptimeatomic -c CHECKFILE -i INCIDENTSFILE -o HTMLFILE -r RSSFILE
+./uptimeatomic -c CHECKFILE -i INCIDENTSFILE -p PASTINCENTSFILE -o HTMLFILE -r RSSFILE
 Default:
-	-c = checks.csv
-	-i = incidents.txt
-	-p = pastincidents.txt
-	-o = index.html
+	-c = checks.csv (default)
+	-i = incidents.txt (default)
+	-p = pastincidents.txt (default)
+	-o = index.html (default)
 	-r = rss file (no default)
 ```