diff --git a/disk_mon.py b/disk_mon.py
index 21a6ab5..82ea6ed 100755
--- a/disk_mon.py
+++ b/disk_mon.py
@@ -20,7 +20,8 @@ class diskmon(object):
         for uuid in uuids:
             part = []
             part.append("/dev/" + os.readlink("/dev/disk/by-uuid/" + uuid)[6:])
-            yield part.append(uuid)
+            part.append(uuid)
+            yield part
 
     def gather(self):
         """gather the actual information"""