diff --git a/tests/integration_tests.rs b/tests/integration_tests.rs
index e65dd96..bac7782 100644
--- a/tests/integration_tests.rs
+++ b/tests/integration_tests.rs
@@ -145,4 +145,5 @@ fn test_non_array_struct() {
 
     // Assert
     assert_eq!(test_feature, feature);
+    assert_eq!(distance, 0.);
 }