diff --git a/form.yml.erb b/form.yml.erb
index fb750dc691dbb0be01d4be4402b43e9673895384..3363c8a989e635c891ed25adafd1f0cc5b2ccba7 100644
--- a/form.yml.erb
+++ b/form.yml.erb
@@ -19,6 +19,7 @@ attributes:
     value: 1
 
   bc_num_slots:
+    widget: "number_field"
     label: Number of CPU
     value: 1
     min: 1
@@ -34,6 +35,7 @@ attributes:
     step: 1
 
   bc_num_gpus:
+    widget: "number_field"
     label: Number of GPUs
     value: 1
     min: 1