diff --git a/crawl.py b/crawl.py
index 1162056..23260fb 100755
--- a/crawl.py
+++ b/crawl.py
@@ -115,8 +115,8 @@ def removeTracker():
         time.sleep(1)
         print("Wait " + str(tkdelay) + " seconds to get peers before remove tracker...")
         time.sleep(tkdelay)
-        tkresult = os.popen('./trans-ctl.sh rmtracker ' + name).read()
-        tkresult = os.popen('./trans-ctl.sh rmtracker ' + higherid).read()
+        os.popen('./trans-ctl.sh rmtracker ' + name).read()
+        os.popen('./trans-ctl.sh rmtracker ' + higherid).read()
 #        print(tkresult)
 
 rollingFiles()