diff --git a/macosx/BlocklistDownloader.mm b/macosx/BlocklistDownloader.mm
index 1092a59cc..26e7079b3 100644
--- a/macosx/BlocklistDownloader.mm
+++ b/macosx/BlocklistDownloader.mm
@@ -94,6 +94,7 @@ BlocklistDownloader* fBLDownloader = nil;
         [NSUserDefaults.standardUserDefaults setObject:[NSDate date] forKey:@"BlocklistNewLastUpdate"];
         [BlocklistScheduler.scheduler updateSchedule];
 
+        [self.fSession finishTasksAndInvalidate];
         fBLDownloader = nil;
     });
 }
@@ -153,6 +154,7 @@ BlocklistDownloader* fBLDownloader = nil;
 
         [NSNotificationCenter.defaultCenter postNotificationName:@"BlocklistUpdated" object:nil];
 
+        [self.fSession finishTasksAndInvalidate];
         fBLDownloader = nil;
     });
 }