diff --git a/NAMESPACE b/NAMESPACE
index 42a8a48..8bfb7a5 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -139,6 +139,7 @@ import(foreach)
 importFrom(BiocGenerics,"end<-")
 importFrom(BiocGenerics,"start<-")
 importFrom(BiocGenerics,"strand<-")
+importFrom(BiocGenerics,data)
 importFrom(BiocGenerics,end)
 importFrom(BiocGenerics,sort)
 importFrom(BiocGenerics,start)
@@ -202,4 +203,3 @@ importFrom(parallel,stopCluster)
 importFrom(stats,as.dist)
 importFrom(stats,optim)
 importFrom(stats,setNames)
-importFrom(utils,data)
diff --git a/R/aminoacid_dist.R b/R/aminoacid_dist.R
index 46cabcd..61ca016 100644
--- a/R/aminoacid_dist.R
+++ b/R/aminoacid_dist.R
@@ -57,7 +57,7 @@
 #' @param ... Not in use yet.
 #' @return A numerical vector with the pairwise distances between codons in 
 #' sequences 'x' and 'y'.
-#' @importFrom utils data
+#' @importFrom BiocGenerics data
 #' @export
 #' @seealso \code{\link{automorphisms}} and \code{\link{codon_coord}}
 #' @references