diff --git a/DESCRIPTION b/DESCRIPTION
index 2262180..64797c8 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -7,7 +7,6 @@ Description: Data stored in text file can be processed chunkwise using 'dplyr' c
     are recorded and executed per data chunk, so large files can be processed with
     limited memory using the 'LaF' package.
 License: GPL-2
-LazyData: TRUE
 BugReports: https://github.com/edwindj/chunked/issues
 URL: https://github.com/edwindj/chunked
 Depends:
@@ -17,10 +16,11 @@ Imports:
     utils,
     rlang, 
     DBI, 
-    progress
+    progress, 
+    tibble
 Suggests:
     testthat,
     RSQLite, 
     dbplyr
-RoxygenNote: 7.1.1
+RoxygenNote: 7.1.2
 Encoding: UTF-8
diff --git a/NAMESPACE b/NAMESPACE
index 2e087ba..0d0a23a 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -41,5 +41,6 @@ export(write_csv_chunkwise)
 export(write_table_chunkwise)
 import(dplyr)
 import(rlang)
+importFrom(tibble,trunc_mat)
 importFrom(utils,head)
 importFrom(utils,tail)
diff --git a/R/print.R b/R/print.R
index 1c17c8f..4564c6f 100644
--- a/R/print.R
+++ b/R/print.R
@@ -1,3 +1,4 @@
+#' @importFrom tibble trunc_mat
 #' @export
 print.chunkwise <- function(x, n=NULL, width=NULL, ...){
   h <- if (is.null(n)) head.chunkwise(x) else head.chunkwise(x,n)