diff --git a/src/currency_quote/domain/entities/currency.py b/src/currency_quote/domain/entities/currency.py
index 5c6ca5c..a0dc244 100644
--- a/src/currency_quote/domain/entities/currency.py
+++ b/src/currency_quote/domain/entities/currency.py
@@ -5,7 +5,7 @@ def __init__(self, currency_list: list):
         self.currency_list = currency_list
 
     def get_currency_list(self) -> list:
-        if self.currency_list is None:
+        if len(self.currency_list) == 0:
             raise ValueError("Currency list is empty")
 
         return self.currency_list
diff --git a/src/currency_quote/domain/entities/test_currency.py b/src/currency_quote/domain/entities/test_currency.py
new file mode 100644
index 0000000..131351c
--- /dev/null
+++ b/src/currency_quote/domain/entities/test_currency.py
@@ -0,0 +1,8 @@
+import pytest
+from currency_quote.domain.entities.currency import CurrencyQuote
+
+
+def test_currency():
+    client = CurrencyQuote(currency_list=[])
+    with pytest.raises(ValueError):
+        client.get_currency_list()