diff --git a/NAMESPACE b/NAMESPACE
index 1643cccc..6563c390 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -117,6 +117,7 @@ importFrom(BiocGenerics,colnames)
 importFrom(BiocGenerics,combine)
 importFrom(BiocGenerics,rownames)
 importFrom(BiocGenerics,table)
+importFrom(BiocGenerics,transform)
 importFrom(DBI,dbIsValid)
 importFrom(DelayedArray,DelayedArray)
 importFrom(EBImage,rotate)
diff --git a/R/trans.R b/R/trans.R
index 912c5bc0..2af78569 100644
--- a/R/trans.R
+++ b/R/trans.R
@@ -3,7 +3,7 @@
 #' @title Transformations
 #' @aliases transform scale rotate translation flip flop mirror sequence
 #' 
-#' @param x,_data \code{SpatialData} element.
+#' @param x \code{SpatialData} element.
 #' @param i scalar integer or string; target coordinate space.
 #' @param t transformation data; exceptions: for \code{mirror}, controls
 #'   whether to perform \bold{v}ertical or \bold{h}orizontal reflection;
@@ -48,13 +48,13 @@
 #' y["shapes", c("rot", "wide", "left")]
 NULL
 
+#' @importFrom BiocGenerics transform
 #' @export
 #' @rdname trans
-setMethod("transform", "SpatialDataElement", \(`_data`, i=1, ...) {
+setMethod("transform", "SpatialDataElement", \(x, i=1, ...) {
     stopifnot(
         length(i) == 1, is.character(i) | 
         (is.numeric(i) && i == round(i)))
-    x <- `_data`
     if (is.character(i)) {
         i <- match.arg(i, CTname(x))
         i <- match(i, CTname(x))
diff --git a/man/trans.Rd b/man/trans.Rd
index 478652e9..447ec9a2 100644
--- a/man/trans.Rd
+++ b/man/trans.Rd
@@ -23,7 +23,7 @@
 \alias{translation,SpatialDataFrame,numeric-method}
 \title{Transformations}
 \usage{
-\S4method{transform}{SpatialDataElement}(`_data`, i = 1, ...)
+\S4method{transform}{SpatialDataElement}(x, i = 1, ...)
 
 \S4method{sequence}{SpatialDataElement,list}(x, t, ..., rev = FALSE)
 
@@ -46,12 +46,12 @@
 \S4method{translation}{SpatialDataFrame,numeric}(x, t, ...)
 }
 \arguments{
+\item{x}{\code{SpatialData} element.}
+
 \item{i}{scalar integer or string; target coordinate space.}
 
 \item{...}{option arguments passed to and from other methods.}
 
-\item{x, _data}{\code{SpatialData} element.}
-
 \item{t}{transformation data; exceptions: for \code{mirror}, controls
 whether to perform \bold{v}ertical or \bold{h}orizontal reflection;
 no data is needed for \code{flip} (\bold{v}) and \code{flop} (\bold{h}).}