diff --git a/form.yml.erb b/form.yml.erb
index 82d828aa06800e84d69f5e613795ad2211d34cc7..b20486ce404223453e8e328a3e04a4ec5d64878d 100644
--- a/form.yml.erb
+++ b/form.yml.erb
@@ -8,6 +8,7 @@ attributes:
     value: 1
 
   bc_num_slots:
+    widget: "number_field"
     label: Number of CPU
     value: 1
     min: 1
@@ -23,6 +24,7 @@ attributes:
     step: 1
 
   bc_num_gpus:
+    widget: "number_field"
     label: Number of GPUs
     value: 1
     min: 1