diff --git a/R-package/R/xgb.model.dt.tree.R b/R-package/R/xgb.model.dt.tree.R
index 9c570c44b..42b3657b0 100644
--- a/R-package/R/xgb.model.dt.tree.R
+++ b/R-package/R/xgb.model.dt.tree.R
@@ -14,7 +14,6 @@
 #' @importFrom stringr str_split
 #' @importFrom stringr str_extract
 #' @importFrom stringr str_trim
-#' @importFrom stringr str_detect
 #' @param feature_names names of each feature as a character vector. Can be extracted from a sparse matrix (see example). If model dump already contains feature names, this argument should be \code{NULL}.
 #' @param filename_dump the path to the text file storing the model. Model dump must include the gain per feature and per tree (parameter \code{with.stats = T} in function \code{xgb.dump}).
 #' @param model dump generated by the \code{xgb.train} function. Avoid the creation of a dump file.