add line_sep to add_header_above
diff --git a/R/kableExtra-package.R b/R/kableExtra-package.R
index 8c254d9..12a3579 100644
--- a/R/kableExtra-package.R
+++ b/R/kableExtra-package.R
@@ -72,6 +72,7 @@
 #' @importFrom stats ave
 #' @importFrom grDevices col2rgb
 #' @importFrom rstudioapi isAvailable viewer
+#' @importFrom glue glue
 #' @import htmltools
 #' @name kableExtra-package
 #' @aliases kableExtra