diff --git a/bin/disksetup.py b/bin/disksetup.py
index 6ee93b66d5d81f10eab1b00899dbb6f0fbe15033..80c759bb4e93cb54463d088fc0515f1e777e63c3 100755
--- a/bin/disksetup.py
+++ b/bin/disksetup.py
@@ -680,7 +680,7 @@ class ModuleDriveDisk(Disk):
         super(ModuleDriveDisk, self).__init__(dev, nparts, psize)
         if dev not in self.params_map:
             raise Exception("Not support module: <{}>".format(dev))
-        self.params = [nparts, size]
+        self.params = [nparts, psize]
         self.kernel_module = self.params_map[dev]['module']
         self.load_cmd = self.gen_cmd()
         self.enabled = self._check_module()