diff --git a/build_sdcard.sh b/build_sdcard.sh
index e91e690f4..f3f04c3ab 100644
--- a/build_sdcard.sh
+++ b/build_sdcard.sh
@@ -255,6 +255,8 @@ if [ $(cat /etc/os-release 2>/dev/null | grep -c 'Debian') -gt 0 ]; then
   fi
 elif [ $(cat /etc/os-release 2>/dev/null | grep -c 'Ubuntu') -gt 0 ]; then
   baseimage="ubuntu"
+elif [ $(cat /etc/os-release 2>/dev/null | grep -c 'Armbian') -gt 0 ]; then
+  baseimage="armbian"
 else
   echo "\n# FAIL: Base Image cannot be detected or is not supported."
   cat /etc/os-release 2>/dev/null
diff --git a/home.admin/config.scripts/bitcoin.install.sh b/home.admin/config.scripts/bitcoin.install.sh
index adb08f7e9..2323d2521 100644
--- a/home.admin/config.scripts/bitcoin.install.sh
+++ b/home.admin/config.scripts/bitcoin.install.sh
@@ -27,7 +27,7 @@ if [ "$1" = "install" ]; then
   cd /home/admin/download || exit 1
 
   # receive signer key
-  if ! gpg --keyserver hkp://keyserver.ubuntu.com --recv-key "71A3 B167 3540 5025 D447 E8F2 7481 0B01 2346 C9A6"
+  if ! gpg --keyserver hkps://keys.openpgp.org --recv-key "71A3 B167 3540 5025 D447 E8F2 7481 0B01 2346 C9A6"
   then
     echo "# FAIL # Couldn't download Wladimir J. van der Laan's PGP pubkey"
     exit 1