diff --git a/class_ch341.py b/class_ch341.py
index f022bcc..ec877a3 100644
--- a/class_ch341.py
+++ b/class_ch341.py
@@ -53,7 +53,7 @@ class ClassCh341:
                     self.ch341SetStream = self.ic.CH341SetStream
 
                 elif os.name == 'posix':
-                    self.ic = cdll.LoadLibrary(addr)  # ch341接口
+                    self.ic = cdll.LoadLibrary(libPath)  # ch341接口
 
                     self.ch341GetInput = self.ic.CH34xGetInput
                     self.ch341CloseDevice = self.ic.CH34xCloseDevice