diff --git a/NAMESPACE b/NAMESPACE
index 574901f..af1488a 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -91,6 +91,7 @@ importFrom(stats,coefficients)
 importFrom(stats,complete.cases)
 importFrom(stats,cor)
 importFrom(stats,cov)
+importFrom(stats,cov.wt)
 importFrom(stats,ecdf)
 importFrom(stats,kmeans)
 importFrom(stats,knots)
diff --git a/R/RStoolbox.R b/R/RStoolbox.R
index 4924e6f..d79ed63 100644
--- a/R/RStoolbox.R
+++ b/R/RStoolbox.R
@@ -55,7 +55,7 @@
 #' @importFrom tidyr pivot_wider complete
 #' @importFrom dplyr mutate group_by summarize filter
 #' @importFrom XML xmlParse xmlToList
-#' @importFrom stats coefficients lm ecdf approxfun knots kmeans complete.cases loadings cov cor setNames
+#' @importFrom stats coefficients cov.wt lm ecdf approxfun knots kmeans complete.cases loadings cov cor setNames
 #' @importFrom graphics par abline
 #' @importFrom methods as show
 #' @importFrom utils read.csv read.delim read.table str write.table data capture.output