diff --git a/modules/qbittorrent.py b/modules/qbittorrent.py
index 27e82b9..e0d8a9e 100755
--- a/modules/qbittorrent.py
+++ b/modules/qbittorrent.py
@@ -547,22 +547,26 @@ class Qbt:
                             # If neither set, use 0 (no limit)
                             min_seeding_time = 0
                             if (
-                                tracker["min_seeding_time"]
+                                tracker["min_seeding_time"] is not None
                                 and tracker["min_seeding_time"] >= nohardlinks[category]["min_seeding_time"]
                             ):
                                 min_seeding_time = tracker["min_seeding_time"]
                             elif nohardlinks[category]["min_seeding_time"]:
                                 min_seeding_time = nohardlinks[category]["min_seeding_time"]
+                           else:
+                            	min_seeding_time = min_seeding_time
                             # Determine max_ratio.
                             # If only tracker setting is set, use tracker's max_ratio
                             # If only nohardlinks category setting is set, use nohardlinks category's max_ratio
                             # If both tracker and nohardlinks category setting is set, use the larger of the two
                             # If neither set, use -1 (no limit)
                             max_ratio = -1
-                            if tracker["max_ratio"] and tracker["max_ratio"] >= nohardlinks[category]["max_ratio"]:
+                            if tracker["max_ratio"] is not None and tracker["max_ratio"] >= nohardlinks[category]["max_ratio"]:
                                 max_ratio = tracker["max_ratio"]
                             elif nohardlinks[category]["max_ratio"]:
                                 max_ratio = nohardlinks[category]["max_ratio"]
+                            else:
+                            	max_ratio = max_ratio
                             # Determine max_seeding_time.
                             # If only tracker setting is set, use tracker's max_seeding_time
                             # If only nohardlinks category setting is set, use nohardlinks category's max_seeding_time
@@ -570,13 +574,14 @@ class Qbt:
                             # If neither set, use -1 (no limit)
                             max_seeding_time = -1
                             if (
-                                tracker["max_seeding_time"]
+                                tracker["max_seeding_time"] is not None
                                 and tracker["max_seeding_time"] >= nohardlinks[category]["max_seeding_time"]
                             ):
                                 max_seeding_time = tracker["max_seeding_time"]
                             elif nohardlinks[category]["max_seeding_time"]:
                                 max_seeding_time = nohardlinks[category]["max_seeding_time"]
-
+                            else:
+                            	max_seeding_time = max_seeding_time
                             # Will only tag new torrents that don't have nohardlinks_tag tag
                             if self.config.nohardlinks_tag not in torrent.tags:
                                 add_tag_no_hl(add_tag=True)