diff --git a/fx.collections/hashtable.c b/fx.collections/hashtable.c
index 5f58dd5..c5ee984 100644
--- a/fx.collections/hashtable.c
+++ b/fx.collections/hashtable.c
@@ -282,18 +282,27 @@ static fx_status hashtable_put(
 		break;
 	} while (1);
 
-	fx_hashtable_item *item = fx_object_create(FX_TYPE_HASHTABLE_ITEM);
+	fx_hashtable_item *item = hashtable->t_items[index].i_item;
+	struct fx_hashtable_item_p *item_p = NULL;
 	if (!item) {
-		return FX_ERR_NO_MEMORY;
+		item = fx_object_create(FX_TYPE_HASHTABLE_ITEM);
+		if (!item) {
+			return FX_ERR_NO_MEMORY;
+		}
+
+		item_p = fx_object_get_private(item, FX_TYPE_HASHTABLE_ITEM);
+
+		fx_value_copy(&item_p->i_key, key);
+
+		hashtable->t_items[index].i_item = item;
+		hashtable->t_count++;
+	} else {
+		item_p = fx_object_get_private(item, FX_TYPE_HASHTABLE_ITEM);
+		fx_value_unset(&item_p->i_value);
 	}
 
-	struct fx_hashtable_item_p *item_p
-		= fx_object_get_private(item, FX_TYPE_HASHTABLE_ITEM);
-	fx_value_copy(&item_p->i_key, key);
 	fx_value_copy(&item_p->i_value, value);
 
-	hashtable->t_items[index].i_item = item;
-	hashtable->t_count++;
 	return FX_SUCCESS;
 }