diff --git a/lib/registration.rb b/lib/registration.rb
index a24720fecd73f1edc6679652835312cd8a4cfceb..1634f63347511b36588a235acf5e714b9ef3d7fe 100644
--- a/lib/registration.rb
+++ b/lib/registration.rb
@@ -376,7 +376,7 @@ class Registration
 
 			def guard_too_many_tries
 				REDIS.get("jmp_invite_tries-#{@customer.customer_id}").then do |t|
-					raise Invalid, "Too many wrong attempts" if t > 10
+					raise Invalid, "Too many wrong attempts" if t.to_i > 10
 				end
 			end
 
diff --git a/test/test_registration.rb b/test/test_registration.rb
index c72043dfcb8a8efd1b14fcc92424bf2c00ce737a..bdf654e3d2c5cee54e3548a046a24eb1d144705d 100644
--- a/test/test_registration.rb
+++ b/test/test_registration.rb
@@ -354,7 +354,7 @@ class RegistrationTest < Minitest::Test
 				customer = Customer.new("test", plan_name: "test_usd")
 				Registration::Payment::InviteCode::REDIS.expect(
 					:get,
-					EMPromise.resolve(0),
+					EMPromise.resolve(nil),
 					["jmp_invite_tries-test"]
 				)
 				Registration::Payment::InviteCode::COMMAND_MANAGER.expect(