diff --git a/app/models/concerns/amount_concern.rb b/app/models/concerns/amount_concern.rb
index 86b01b443..b2d07d050 100644
--- a/app/models/concerns/amount_concern.rb
+++ b/app/models/concerns/amount_concern.rb
@@ -8,7 +8,7 @@ module AmountConcern
       if amount.nil?
         write_attribute(:amount, amount)
       else
-        write_attribute(:amount, amount.to_i * 100)
+        write_attribute(:amount, (amount * 100).to_i)
       end
     end
 
diff --git a/test/integration/wallets_test.rb b/test/integration/wallets_test.rb
index 5ace5e4af..bc9c89aac 100644
--- a/test/integration/wallets_test.rb
+++ b/test/integration/wallets_test.rb
@@ -61,7 +61,7 @@ class WalletsTest < ActionDispatch::IntegrationTest
     admin = users(:user_1)
     login_as(admin, scope: :user)
     w = @vlonchamp.wallet
-    amount = 10
+    amount = 10.5
     expected_amount = w.amount + amount
     put "/api/wallet/#{w.id}/credit",
       {
diff --git a/test/models/wallet_test.rb b/test/models/wallet_test.rb
index 537ae6bdf..7eb1fbb01 100644
--- a/test/models/wallet_test.rb
+++ b/test/models/wallet_test.rb
@@ -13,8 +13,8 @@ class WalletTest < ActiveSupport::TestCase
 
   test 'can credit amount' do
     w = Wallet.first
-    expected_amount = w.amount + 5
-    assert w.credit(5)
+    expected_amount = w.amount + 5.5
+    assert w.credit(5.5)
     assert_equal w.amount, expected_amount
   end