diff --git a/NAMESPACE b/NAMESPACE
index 2eda24e4..ef225aec 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -40,6 +40,7 @@ export(areColors)
 export(basis_init)
 export(basis_random)
 export(center)
+export(check_dup)
 export(cmass)
 export(cumulative_radial)
 export(dcor2d)
diff --git a/R/search-jellyfish.R b/R/search-jellyfish.R
index 44a45403..dba60400 100644
--- a/R/search-jellyfish.R
+++ b/R/search-jellyfish.R
@@ -89,6 +89,7 @@ search_jellyfish <- function(current, index, tries, max.tries = 50, ...) {
 #' @param bases a list of bases extracted from the data collection object, see examples
 #' @param min_dist the minimum distance between two bases
 #' @rdname jellyfish
+#' @export;
 check_dup <- function(bases, min_dist) {
   res <- list()
   res[[1]] <- bases[[1]]