X-Git-Url: https://review.fuel-infra.org/gitweb?a=blobdiff_plain;f=REFERENCE.md;h=081866dcd89c67be39c737977c75bae1748030ca;hb=6d5fc1504ecf85e0cd6c9ef2c7d9d2e74ccf89d9;hp=be2e9810babacc5a760af9d8b936f71e36da8731;hpb=238898455f0d9c4d5fc0d4a2ad950982835a72ab;p=puppet-modules%2Fpuppetlabs-apt.git

diff --git a/REFERENCE.md b/REFERENCE.md
index be2e981..081866d 100644
--- a/REFERENCE.md
+++ b/REFERENCE.md
@@ -66,7 +66,7 @@ Default value: $apt::params::provider
 Data type: `String`
 
 Specifies a keyserver to provide the GPG key. Valid options: a string containing a domain name or a full URL (http://, https://,
-hkp:// or hkps://).
+hkp:// or hkps://). The hkps:// protocol is currently only supported on Ubuntu 18.04.
 
 Default value: $apt::params::keyserver
 
@@ -484,7 +484,7 @@ Default value: `undef`
 Data type: `Pattern[/\A((hkp|hkps|http|https):\/\/)?([a-z\d])([a-z\d-]{0,61}\.)+[a-z\d]+(:\d{2,5})?$/]`
 
 Specifies a keyserver to provide the GPG key. Valid options: a string containing a domain name or a full URL (http://, https://,
-hkp:// or hkps://).
+hkp:// or hkps://). The hkps:// protocol is currently only supported on Ubuntu 18.04.
 
 Default value: $::apt::keyserver