diff --git a/R/align-GCIMSSample.R b/R/align-GCIMSSample.R
index 08794b3..b10fa76 100644
--- a/R/align-GCIMSSample.R
+++ b/R/align-GCIMSSample.R
@@ -6,6 +6,7 @@
 #' @param ip_ref_s Injection point reference for retention time
 #' @param method_rt Method for alignment, should be "ptw" or "pow"
 #' @param align_ip if TRUE a multiplicative correction will be done in retention time before applying the other algorithm
+#' @param ... Additional arguments passed on to the alignment method.
 #' @return The modified [GCIMSSample]
 #' @export
 methods::setMethod(
diff --git a/man/align-GCIMSSample-method.Rd b/man/align-GCIMSSample-method.Rd
index 14cdfb1..327d9d4 100644
--- a/man/align-GCIMSSample-method.Rd
+++ b/man/align-GCIMSSample-method.Rd
@@ -30,6 +30,8 @@
 \item{method_rt}{Method for alignment, should be "ptw" or "pow"}
 
 \item{align_ip}{if TRUE a multiplicative correction will be done in retention time before applying the other algorithm}
+
+\item{...}{Additional arguments passed on to the alignment method.}
 }
 \value{
 The modified \link{GCIMSSample}