diff --git a/tests/ignite/metrics/test_cosine_similarity.py b/tests/ignite/metrics/test_cosine_similarity.py
index 3e0c99a5eee..db7a5d5d9f1 100644
--- a/tests/ignite/metrics/test_cosine_similarity.py
+++ b/tests/ignite/metrics/test_cosine_similarity.py
@@ -102,7 +102,7 @@ def update(engine, i):
         y_true_np = y_true.cpu().numpy()
         y_preds_np = y_preds.cpu().numpy()
         y_true_norm = np.clip(np.linalg.norm(y_true_np, axis=1, keepdims=True), 1e-8, None)
-        y_preds_norm = np.clip(np.linalg.norm(y_preds, axis=1, keepdims=True), 1e-8, None)
+        y_preds_norm = np.clip(np.linalg.norm(y_preds_np, axis=1, keepdims=True), 1e-8, None)
         true_res = np.sum((y_true_np / y_true_norm) * (y_preds_np / y_preds_norm), axis=1)
         true_res = np.mean(true_res)