diff --git a/payments/hooks.py b/payments/hooks.py
index 84448fc..024a01b 100644
--- a/payments/hooks.py
+++ b/payments/hooks.py
@@ -63,7 +63,7 @@ app_license = "MIT"
 # Installation
 # ------------
 
-# before_install = "pay.install.before_install"
+before_install = "payments.utils.before_install"
 after_install = "payments.utils.make_custom_fields"
 
 # Uninstallation
diff --git a/payments/utils/__init__.py b/payments/utils/__init__.py
index e038119..518a939 100644
--- a/payments/utils/__init__.py
+++ b/payments/utils/__init__.py
@@ -1,6 +1,7 @@
 from payments.utils.utils import (
-    get_payment_gateway_controller,
+    before_install,
     create_payment_gateway,
-    make_custom_fields,
     delete_custom_fields,
+    get_payment_gateway_controller,
+    make_custom_fields,
 )
diff --git a/payments/utils/utils.py b/payments/utils/utils.py
index 455065f..a34c16d 100644
--- a/payments/utils/utils.py
+++ b/payments/utils/utils.py
@@ -2,6 +2,7 @@ import click
 
 import frappe
 from frappe import _
+from frappe.utils.data import cint
 from frappe.custom.doctype.custom_field.custom_field import create_custom_fields
 
 
@@ -133,6 +134,8 @@ def make_custom_fields():
 			]
 		})
 
+		frappe.clear_cache(doctype="Web Form")
+
 
 def delete_custom_fields():
 	if frappe.get_meta("Web Form").has_field("payments_tab"):
@@ -156,3 +159,11 @@ def delete_custom_fields():
 				"Custom Field",
 				{"name": "Web Form-" + fieldname}
 			)
+
+		frappe.clear_cache(doctype="Web Form")
+
+
+def before_install():
+	# only install for v14
+	if cint(frappe.get_module("frappe").__version__[:2]) < 14 or not frappe.get_meta("Module Def").has_field("custom"):
+		return False