diff --git a/NAMESPACE b/NAMESPACE
index bfe307935927ea7a881ad48f3065b32d2dad3a0c..484c11a96af070e35733e807df0f1da8c84aeb00 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -65,6 +65,7 @@ importFrom(DECIPHER,DistanceMatrix)
 importFrom(GenomicRanges,GRanges)
 importFrom(IRanges,ranges)
 importFrom(ape,as.DNAbin)
+importFrom(cowplot,draw_label)
 importFrom(cowplot,get_legend)
 importFrom(cowplot,ggdraw)
 importFrom(cowplot,plot_grid)
diff --git a/R/combine_cluster_plots_and_save.R b/R/combine_cluster_plots_and_save.R
index a1d8b840f63f5dd041b88b69c8dff3f7e6eddbc5..ee93ff9bec493e9848240de41bcbd264bf0d4ae0 100644
--- a/R/combine_cluster_plots_and_save.R
+++ b/R/combine_cluster_plots_and_save.R
@@ -12,7 +12,7 @@
 #' @param h The height of the plot. Default is 'cm_height'.
 #' @return combined plot
 #' @import ggplot2
-#' @importFrom cowplot get_legend plot_grid ggdraw
+#' @importFrom cowplot get_legend plot_grid ggdraw draw_label
 #' @export
 combine_cluster_plots_and_save <- function(plot_list, cluster, out_path = path,
                                            w = cm_width, h = cm_height) {