diff --git a/files/board/arpl/overlayfs/opt/arpl/model-configs/FS2500.yml b/files/board/arpl/overlayfs/opt/arpl/model-configs/FS2500.yml
index ceb9d294..cea12cab 100644
--- a/files/board/arpl/overlayfs/opt/arpl/model-configs/FS2500.yml
+++ b/files/board/arpl/overlayfs/opt/arpl/model-configs/FS2500.yml
@@ -22,7 +22,7 @@ serial:
   prefix:
     - "1960"
   middle: "PSN"
-  suffix: "alpha"
+  suffix: "numeric"
 dom: 2
 dt: true
 disks: 12
diff --git a/files/board/arpl/overlayfs/opt/arpl/model-configs/FS6400.yml.disabled b/files/board/arpl/overlayfs/opt/arpl/model-configs/FS6400.yml.disabled
index 84e00f1e..a95d4cd5 100644
--- a/files/board/arpl/overlayfs/opt/arpl/model-configs/FS6400.yml.disabled
+++ b/files/board/arpl/overlayfs/opt/arpl/model-configs/FS6400.yml.disabled
@@ -22,7 +22,7 @@ serial:
   prefix:
     - "1960"
   middle: "PSN"
-  suffix: "alpha"
+  suffix: "numeric"
 dom: 2
 dt: true
 disks: 24