diff --git a/frappe/desk/doctype/number_card/number_card.js b/frappe/desk/doctype/number_card/number_card.js
index 9bc071b723..5ad5d76ac8 100644
--- a/frappe/desk/doctype/number_card/number_card.js
+++ b/frappe/desk/doctype/number_card/number_card.js
@@ -24,6 +24,7 @@ frappe.ui.form.on('Number Card', {
 			}
 			frm.filters = eval(frm.doc.filters_config);
 			frm.trigger('set_filters_description');
+			frm.trigger('set_method_description');
 			frm.trigger('render_filters_table');
 		}
 		frm.trigger('create_add_to_dashboard_button');
@@ -110,6 +111,21 @@ frappe.ui.form.on('Number Card', {
 		}
 	},
 
+	set_method_description: function(frm) {
+		console.log('called');
+		if (frm.doc.type == 'Custom') {
+			frm.fields_dict.method.set_description(`
+		Set the path to a whitelisted function that will return the number on the card in the format:
+<pre class="small text-muted">
+<code>
+{
+	"value": value,
+	"fieldtype": "Currency"
+}
+</code></pre>`)
+		}
+	},
+
 	type: function(frm) {
 		frm.trigger('set_filters_description');
 		if (frm.doc.type == 'Report') {
diff --git a/frappe/desk/doctype/number_card/number_card.json b/frappe/desk/doctype/number_card/number_card.json
index 1d0528b298..e94a06dab8 100644
--- a/frappe/desk/doctype/number_card/number_card.json
+++ b/frappe/desk/doctype/number_card/number_card.json
@@ -164,7 +164,6 @@
   },
   {
    "depends_on": "eval: doc.type == 'Custom'",
-   "description": "This should contain the path to a whitelisted function that will return the number on the card",
    "fieldname": "method",
    "fieldtype": "Data",
    "label": "Method",
@@ -192,7 +191,7 @@
   }
  ],
  "links": [],
- "modified": "2020-07-16 13:04:03.470001",
+ "modified": "2020-07-17 18:04:00.814756",
  "modified_by": "Administrator",
  "module": "Desk",
  "name": "Number Card",