diff --git a/ihatemoney/tests/tests.py b/ihatemoney/tests/tests.py
index 48ae95c0..6e03e674 100644
--- a/ihatemoney/tests/tests.py
+++ b/ihatemoney/tests/tests.py
@@ -1146,6 +1146,7 @@ class BudgetTestCase(IhatemoneyTestCase):
                 "payed_for": [1, 2, 3, 4],
                 "amount": "10.0",
                 "original_currency": "USD",
+                "original_amount": "10.0",
             },
         )
 
@@ -1158,6 +1159,7 @@ class BudgetTestCase(IhatemoneyTestCase):
                 "payed_for": [1, 3],
                 "amount": "200",
                 "original_currency": "USD",
+                "original_amount": "200",
             },
         )
 
@@ -1170,6 +1172,7 @@ class BudgetTestCase(IhatemoneyTestCase):
                 "payed_for": [2],
                 "amount": "13.33",
                 "original_currency": "USD",
+                "original_amount": "13.33",
             },
         )
 
diff --git a/ihatemoney/utils.py b/ihatemoney/utils.py
index 5c911eb7..696db6bf 100644
--- a/ihatemoney/utils.py
+++ b/ihatemoney/utils.py
@@ -29,6 +29,9 @@ class CurrencyConverter(object):
         return currencies
 
     def exchange_currency(self, amount, currency1, currency2):
+        if currency1 == currency2:
+            return amount
+            
         base = self.response["base"]
         conversion_rate1 = self.response["rates"][currency1]
         conversion_rate2 = self.response["rates"][currency2]