diff --git a/RBBGCMuso/R/multiSite.R b/RBBGCMuso/R/multiSite.R
index 4c6ac06..e868fcc 100644
--- a/RBBGCMuso/R/multiSite.R
+++ b/RBBGCMuso/R/multiSite.R
@@ -310,8 +310,8 @@ multiSiteCalib <- function(measurements,
                          max(c(measured,original,calibrated))),
                   xlim=c(min(c(measured,original,calibrated)),
                          max(c(measured,original,calibrated))),
-                  xlab=expression("measured "~(kg[C]~m^-2)),
-                  ylab=expression("simulated "~(kg[C]~m^-2)),
+                  xlab=expression("measured "~(kg[DM]~m^-2)),
+                  ylab=expression("simulated "~(kg[DM]~m^-2)),
                   cex.lab=1.3,
                   col="red",
                   pch=19,