diff --git a/inst/extdata/FOsites.csv b/inst/extdata/FOsites.csv
index eb75c65..be029f8 100644
--- a/inst/extdata/FOsites.csv
+++ b/inst/extdata/FOsites.csv
@@ -1,11 +1,11 @@
 site,site_type,blocks
-mu,Advanced CarbonAction Site,[0;1]
+MU,Advanced CarbonAction Site,[0;1]
 IK,Advanced CarbonAction Site,[0;1]
 MI,Advanced CarbonAction Site,[0;1]
 PA,Advanced CarbonAction Site,[0;1]
 SI,Advanced CarbonAction Site,[0;1]
 LI,Advanced CarbonAction Site,[0;1]
-ki,Advanced CarbonAction Site,[0;1]
+KI,Advanced CarbonAction Site,[0;1]
 JA,Advanced CarbonAction Site,[0;1]
 AI,Advanced CarbonAction Site,[0;1]
 PI,Advanced CarbonAction Site,[0;1]
@@ -15,8 +15,8 @@ KO,Advanced CarbonAction Site,[0;1]
 NI,Advanced CarbonAction Site,[0;1]
 JN,Advanced CarbonAction Site,[0;1]
 KP,Advanced CarbonAction Site,[0;1]
-la,Advanced CarbonAction Site,[0;1]
-na,Advanced CarbonAction Site,[0;1]
+LA,Advanced CarbonAction Site,[0;1]
+NA,Advanced CarbonAction Site,[0;1]
 AE,Advanced CarbonAction Site,[0;1]
 NE,Advanced CarbonAction Site,[0;1]
 qvidja,Intensive Site,[ec;ca6cm;ca15cm]