diff --git a/src/Integration.Tests/FalseReturns.cs b/src/Integration.Tests/FalseReturns.cs
index d20744d1..e2de97d7 100644
--- a/src/Integration.Tests/FalseReturns.cs
+++ b/src/Integration.Tests/FalseReturns.cs
@@ -95,4 +95,12 @@ public void Test_FalseReturn_Types_StrNotInt()
 
         Assert.Throws<PythonInvocationException>(() => falseReturns.TestIntReturnsStr());
     }
+
+    [Fact]
+    public void Test_IntOverflowsSafely()
+    {
+        var falseReturns = Env.TestFalseReturns();
+
+        Assert.Throws<PythonInvocationException>(() => falseReturns.TestIntOverflows());
+    }
 }
diff --git a/src/Integration.Tests/python/test_false_returns.py b/src/Integration.Tests/python/test_false_returns.py
index 4bcc9469..12ddaa2d 100644
--- a/src/Integration.Tests/python/test_false_returns.py
+++ b/src/Integration.Tests/python/test_false_returns.py
@@ -30,3 +30,6 @@ def test_int_returns_float() -> int:
 
 def test_int_returns_str() -> int:
     return "1"
+
+def test_int_overflows() -> int:
+    return 2**64