diff --git a/NAMESPACE b/NAMESPACE
index eede0b96e..cfaba60ed 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -91,7 +91,6 @@ export(request)
 export(send)
 export(send_aio)
 export(serial_config)
-export(set_promise_context)
 export(socket)
 export(stat)
 export(status_code)
diff --git a/R/aio.R b/R/aio.R
index 0184c7678..74e5c468c 100644
--- a/R/aio.R
+++ b/R/aio.R
@@ -412,8 +412,3 @@ is.promising.recvAio <- function(x) TRUE
 #' @export
 #'
 .keep <- function(x, ctx) .Call(rnng_set_promise_context, x, ctx)
-
-#' @rdname dot-keep
-#' @export
-#'
-set_promise_context <- .keep
diff --git a/man/dot-keep.Rd b/man/dot-keep.Rd
index 3c0617344..d443e7cd1 100644
--- a/man/dot-keep.Rd
+++ b/man/dot-keep.Rd
@@ -2,12 +2,9 @@
 % Please edit documentation in R/aio.R
 \name{.keep}
 \alias{.keep}
-\alias{set_promise_context}
 \title{Keep Promise}
 \usage{
 .keep(x, ctx)
-
-set_promise_context(x, ctx)
 }
 \arguments{
 \item{x}{a \sQuote{recvAio} or \sQuote{ncurlAio} object.}