diff --git a/bioformats/__init__.py b/bioformats/__init__.py
index 84d1150..2c18b07 100644
--- a/bioformats/__init__.py
+++ b/bioformats/__init__.py
@@ -95,4 +95,4 @@
     import wx.py.PyCrust
 
     wx.py.PyCrust.main()
-    J.kill_vm()
+    javabridge.kill_vm()
diff --git a/bioformats/formatreader.py b/bioformats/formatreader.py
index 9a18dbf..2d540d5 100644
--- a/bioformats/formatreader.py
+++ b/bioformats/formatreader.py
@@ -748,8 +748,8 @@ def init_reader(self):
                 je, "java/io/FileNotFoundException"):
                 raise IOError(
                     errno.ENOENT,
-                    "The file, \"%s\", does not exist." % path,
-                    path)
+                    "The file, \"%s\", does not exist." % self.path,
+                    self.path)
             e2 = IOError(
                 errno.EINVAL, "Could not load the file as an image (see log for details)",
                 self.path.encode('utf-8'))
diff --git a/bioformats/omexml.py b/bioformats/omexml.py
index 3a8535f..34ac366 100644
--- a/bioformats/omexml.py
+++ b/bioformats/omexml.py
@@ -1161,7 +1161,7 @@ def get_Description(self):
             return get_text(description)
 
         def set_Description(self, text):
-            make_text_node(self.node, NS_SPW, "Description", test)
+            make_text_node(self.node, self.ns['spw'], "Description", text)
         Description = property(get_Description, set_Description)
 
         def get_Well(self):