diff --git a/CHANGELOG.asciidoc b/CHANGELOG.asciidoc
index 4217cad65..7c4df4655 100644
--- a/CHANGELOG.asciidoc
+++ b/CHANGELOG.asciidoc
@@ -40,6 +40,8 @@ Changed
   now prefer the count instead of showing an error message.
 - `:open` now has an `--implicit` argument to treat the opened tab as implicit
   (i.e. to open it at the position it would be opened if it was a clicked link)
+- `:download-open` and `:prompt-open-download` now have an optional `cmdline`
+  argument to pass a commandline to open the download with.
 
 v0.8.2
 ------
diff --git a/doc/help/commands.asciidoc b/doc/help/commands.asciidoc
index 54cf56042..eb384ffae 100644
--- a/doc/help/commands.asciidoc
+++ b/doc/help/commands.asciidoc
@@ -222,7 +222,9 @@ Open the last/[count]th download.
 If no specific command is given, this will use the system's default application to open the file.
 
 ==== positional arguments
-* +'cmdline'+: The command which should be used to open the file. A `{}` is expanded to the temporary file name.
+* +'cmdline'+: The command which should be used to open the file. A `{}` is expanded to the temporary file name. If no `{}` is
+ present, the filename is automatically appended to the
+ cmdline.
 
 
 ==== count
@@ -1186,7 +1188,9 @@ Immediately open a download.
 If no specific command is given, this will use the system's default application to open the file.
 
 ==== positional arguments
-* +'cmdline'+: The command which should be used to open the file. A `{}` is expanded to the temporary file name.
+* +'cmdline'+: The command which should be used to open the file. A `{}` is expanded to the temporary file name. If no `{}` is
+ present, the filename is automatically appended to the
+ cmdline.
 
 
 ==== note