diff --git a/.gitignore b/.gitignore
index e4e41cd..509c65c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 /man/
+.Rproj.user
diff --git a/R/resolution.R b/R/resolution.R
index ebc606d..ac6fe78 100644
--- a/R/resolution.R
+++ b/R/resolution.R
@@ -7,8 +7,8 @@ NULL
 resolution = function(taxonomy,ecopcr) {
   l = aggregate(ecopcr$taxid,
                 by=list(barcode=ecopcr$sequence),
-                function(x) lowest.common.ancestor(taxo,x))
-  r = taxonomicrank(taxo,l$x)
+                function(x) lowest.common.ancestor(taxonomy,x))
+  r = taxonomicrank(taxonomy,l$x)
   names(r)=as.character(l$barcode)
   
   return(r[as.character(ecopcr$sequence)])