diff --git a/NAMESPACE b/NAMESPACE
index bf4d00e..fb12e42 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -1,7 +1,6 @@
 # Generated by roxygen2: do not edit by hand
 
 export("%>%")
-export(":=")
 export(check_interval)
 export(count_intervals)
 export(create_byperson)
diff --git a/R/magrittrpipeoperator.R b/R/magrittrpipeoperator.R
index 5f9ab2a..036dd30 100644
--- a/R/magrittrpipeoperator.R
+++ b/R/magrittrpipeoperator.R
@@ -7,14 +7,3 @@
 #' @importFrom magrittr %>%
 #' @usage lhs \%>\% rhs
 NULL
-
-
-#' dot dot equal
-#'
-#' @name :=
-#' @rdname dotdotequal
-#' @keywords internal
-#' @export
-#' @importFrom rlang :=
-#' @usage dotdotequal
-NULL
diff --git a/R/write_bysg.R b/R/write_bysg.R
index f204915..2091182 100644
--- a/R/write_bysg.R
+++ b/R/write_bysg.R
@@ -27,6 +27,7 @@
 #' @param stata_version Numeric, specifying STATA version number.
 #' @references Tang, T. Z., & DeRubeis, R. J. (1999). Sudden gains and critical sessions in cognitive-behavioral therapy for depression. Journal of Consulting and Clinical Psychology, 67(6), 894–904. \url{https://doi.org/10.1037/0022-006X.67.6.894}.
 #' @export
+#' @importFrom rlang :=
 #' @examples # Adjust "path" argument before running
 #' # Create character string name for temporary "bysg.csv" file
 #' temp <- tempfile(pattern = "bysg", fileext = ".csv")
diff --git a/man/dotdotequal.Rd b/man/dotdotequal.Rd
deleted file mode 100644
index f1e679f..0000000
--- a/man/dotdotequal.Rd
+++ /dev/null
@@ -1,12 +0,0 @@
-% Generated by roxygen2: do not edit by hand
-% Please edit documentation in R/magrittrpipeoperator.R
-\name{:=}
-\alias{:=}
-\title{dot dot equal}
-\usage{
-dotdotequal
-}
-\description{
-dot dot equal
-}
-\keyword{internal}