diff --git a/nalgebra-sparse/src/coo.rs b/nalgebra-sparse/src/coo.rs
index 240e2c575..1a1720ede 100644
--- a/nalgebra-sparse/src/coo.rs
+++ b/nalgebra-sparse/src/coo.rs
@@ -212,7 +212,7 @@ impl<T> CooMatrix<T> {
     }
 
     /// Clear all triplets from the matrix.
-    pub fn clear_triplets(&mut self, i: usize, j: usize, v: T)
+    pub fn clear_triplets(&mut self)
     where
         T: PartialEq,
     {
diff --git a/nalgebra-sparse/tests/unit_tests/coo.rs b/nalgebra-sparse/tests/unit_tests/coo.rs
index 16ee56476..d232b0414 100644
--- a/nalgebra-sparse/tests/unit_tests/coo.rs
+++ b/nalgebra-sparse/tests/unit_tests/coo.rs
@@ -238,7 +238,7 @@ fn coo_clear_triplets_valid_entries() {
         vec![(0, 0, &1), (0, 0, &2), (2, 2, &3)]
     );
     coo.clear_triplets();
-    assert_eq(coo.triplet_iter.collect::<Vec<_>>(), vec![]);
+    assert_eq!(coo.triplet_iter().collect::<Vec<_>>(), vec![]);
     // making sure everyhting works after clearing
     coo.push(0, 0, 1);
     coo.push(0, 0, 2);