diff --git a/system/prometheus/prometheus.SlackBuild b/system/prometheus/prometheus.SlackBuild
index 7e5b6d5056b..cf8556de6e1 100644
--- a/system/prometheus/prometheus.SlackBuild
+++ b/system/prometheus/prometheus.SlackBuild
@@ -63,8 +63,10 @@ OUTPUT=${OUTPUT:-/tmp}
 
 if [ "$ARCH" = "x86_64" ]; then
   PKG_ARCH=amd64
+elif [ "$ARCH" = "aarch64" ]; then
+  PKG_ARCH=arm64
 else
-  echo "$ARCH is not supported."
+  echo "Unsuported Architecture"
   exit 1
 fi