diff --git a/bin/lib/Tracker.py b/bin/lib/Tracker.py
index b09a1d3e..020a56c4 100755
--- a/bin/lib/Tracker.py
+++ b/bin/lib/Tracker.py
@@ -104,8 +104,12 @@ def is_valid_default_yara_rule(yara_rule):
     filename = os.path.join(yara_dir, yara_rule)
     filename = os.path.realpath(filename)
 
+    print(yara_dir)
+    print(filename)
+
     # incorrect filename
     if not os.path.commonprefix([filename, yara_dir]) == yara_dir:
+        print('error: file transversal')
         return False
     else:
         if os.path.isfile(filename):