diff --git a/api/calculator/test_calculator.py b/api/calculator/test_calculator.py
index ad1a589..225c700 100644
--- a/api/calculator/test_calculator.py
+++ b/api/calculator/test_calculator.py
@@ -28,4 +28,6 @@ def test_divide():
     assert Calculator.divide(1.0, 2.0) == 0.5
     assert Calculator.divide(0, 2.0) == 0
     assert Calculator.divide(-4, 2.0) == -2.0
-    
\ No newline at end of file
+
+def test_divide_by_zero():
+    assert Calculator.divide(1, 0) == "Cannot divide by 0"
\ No newline at end of file