diff --git a/koji/util.py b/koji/util.py
index 25d7d796..495cea46 100644
--- a/koji/util.py
+++ b/koji/util.py
@@ -517,13 +517,12 @@ def check_sigmd5(filename):
         f.seek(o)
         data = f.read(8)
         indexcount, storesize = struct.unpack('!II', data)
-        sig_o = 0
         for idx in range(indexcount):
             data = f.read(16)
             tag, data_type, offset, count = struct.unpack('!IIII', data)
-            if tag == 1004: # SIGMD5
-                assert(data_type == 7) # binary data
-                assert(count == 16)   # 16 bytes of md5
+            if tag == 1004:  # SIGMD5
+                assert(data_type == 7)  # binary data
+                assert(count == 16)     # 16 bytes of md5
                 break
         # seek to location of md5
         f.seek(o + 8 + indexcount * 16 + offset)
diff --git a/vm/kojivmd b/vm/kojivmd
index 968aff68..5aa25876 100755
--- a/vm/kojivmd
+++ b/vm/kojivmd
@@ -38,6 +38,7 @@ import subprocess
 import libvirt
 import libxml2
 import random
+import rpm
 import socket
 import six.moves.xmlrpc_server
 import threading