diff --git a/nalgebra-sparse/tests/unit_tests/coo.rs b/nalgebra-sparse/tests/unit_tests/coo.rs
index b9c22885..16ee5647 100644
--- a/nalgebra-sparse/tests/unit_tests/coo.rs
+++ b/nalgebra-sparse/tests/unit_tests/coo.rs
@@ -239,6 +239,14 @@ fn coo_clear_triplets_valid_entries() {
     );
     coo.clear_triplets();
     assert_eq(coo.triplet_iter.collect::<Vec<_>>(), vec![]);
+    // making sure everyhting works after clearing
+    coo.push(0, 0, 1);
+    coo.push(0, 0, 2);
+    coo.push(2, 2, 3);
+    assert_eq!(
+        coo.triplet_iter().collect::<Vec<_>>(),
+        vec![(0, 0, &1), (0, 0, &2), (2, 2, &3)]
+    );
 }
 
 #[test]