diff --git a/util/error.py b/util/error.py
index 44b9b0e01..f4f40d981 100644
--- a/util/error.py
+++ b/util/error.py
@@ -6,6 +6,9 @@
 
 class UUError(Exception):
     """Generic Python rule error."""
+    def __init__(self, message):
+        self.message = message
+        super(UUError, self).__init__(message)
 
 
 class UUFileSizeError(UUError):
diff --git a/util/msi.py b/util/msi.py
index 74bfa7c9f..7835fd34d 100644
--- a/util/msi.py
+++ b/util/msi.py
@@ -98,7 +98,7 @@ def _make_exception(name, message):
 data_obj_write,   DataObjWriteError   = make('DataObjWrite',   'Could not write data object')
 data_obj_close,   DataObjCloseError   = make('DataObjClose',   'Could not close data object')
 data_obj_copy,    DataObjCopyError    = make('DataObjCopy',    'Could not copy data object')
-data_obj_repl,    DataObjReplError    = make('DataObjRepl',   'Could not replicate data object')
+data_obj_repl,    DataObjReplError    = make('DataObjRepl',    'Could not replicate data object')
 data_obj_unlink,  DataObjUnlinkError  = make('DataObjUnlink',  'Could not remove data object')
 data_obj_rename,  DataObjRenameError  = make('DataObjRename',  'Could not rename data object')
 data_obj_chksum,  DataObjChksumError  = make('DataObjChksum',  'Could not checksum data object')