diff --git a/form.yml.erb b/form.yml.erb
index 645c1a5c46a4fb7b66236203253dba2da64d957a..ad03be242d07bf4f35ce5eba58acd05755bda96a 100644
--- a/form.yml.erb
+++ b/form.yml.erb
@@ -69,6 +69,7 @@ attributes:
     value: 1
 
   bc_num_slots:
+    widget: "number_field"
     label: Number of CPU
     value: 1
     min: 1
@@ -84,6 +85,7 @@ attributes:
     step: 1
 
   bc_num_gpus:
+    widget: "number_field"
     label: Number of GPUs
     value: 1
     min: 1