diff --git a/DESCRIPTION b/DESCRIPTION
index 4798418..fcc951f 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -25,7 +25,7 @@ Suggests:
     DT,
     htmltools,
     knitr,
-    markdown,
+    rmarkdown,
     repr,
     ggplot2,
     testthat,
diff --git a/NEWS b/NEWS
index 1777d8d..3006706 100644
--- a/NEWS
+++ b/NEWS
@@ -1,7 +1,7 @@
 0.10.6 (26.07.2020)
 ================
 * fix for new data.table version (issue #67). Thanks to John Williams.
-* fix unfriendly and arrogant dplyr behaviour (issues #65, #68)
+* fix dplyr behaviour (issues #65, #68)
 
 0.10.5 (05.07.2020)
 ================
diff --git a/R/S3_methods.R b/R/S3_methods.R
index 5015aa7..7da6e98 100644
--- a/R/S3_methods.R
+++ b/R/S3_methods.R
@@ -58,7 +58,7 @@ c_labelled_factors = function(vectors){
     is_ordered = any(vapply(vectors, FUN = is.ordered, FUN.VALUE = TRUE))
     vectors = unlab(vectors)
     all_levels = lapply(vectors, extract_levels)
-    all_levels = unique(unlist(all_levels, use.name = FALSE))
+    all_levels = unique(unlist(all_levels, use.names = FALSE))
     res = unlist(lapply(vectors, as.character), use.names = FALSE)
     if(is_ordered){
         ordered(res, levels = all_levels)