diff --git a/R/download-chromium.R b/R/download-chromium.R
index f7aafc2..86bda9c 100644
--- a/R/download-chromium.R
+++ b/R/download-chromium.R
@@ -5,7 +5,7 @@
 #' @param chromium_revision version to download (keep default unless you require
 #'        a specific version)
 #' @export
-download_chromium <- function(path = NULL, chromium_revision = 579032) {
+download_chromium <- function(path, chromium_revision = 579032) {
 
   path <- path.expand(path)
   stopifnot(dir.exists(path))
diff --git a/man/download_chromium.Rd b/man/download_chromium.Rd
index 618e115..5846052 100644
--- a/man/download_chromium.Rd
+++ b/man/download_chromium.Rd
@@ -4,7 +4,7 @@
 \alias{download_chromium}
 \title{Download a standalone version of Chromium (recommended)}
 \usage{
-download_chromium(path = NULL, chromium_revision = 579032)
+download_chromium(path, chromium_revision = 579032)
 }
 \arguments{
 \item{path}{where to store the Chromium app.}