diff --git a/src/allmydata/web/directory.py b/src/allmydata/web/directory.py
index 207dc53ce..73ae13fa6 100644
--- a/src/allmydata/web/directory.py
+++ b/src/allmydata/web/directory.py
@@ -36,10 +36,10 @@ class BlockingFileError(Exception):
 def make_handler_for(node, parentnode=None, name=None):
     if parentnode:
         assert IDirectoryNode.providedBy(parentnode)
-    if IFileNode.providedBy(node):
-        return FileNodeHandler(node, parentnode, name)
     if IMutableFileNode.providedBy(node):
         return FileNodeHandler(node, parentnode, name)
+    if IFileNode.providedBy(node):
+        return FileNodeHandler(node, parentnode, name)
     if IDirectoryNode.providedBy(node):
         return DirectoryNodeHandler(node, parentnode, name)
     raise WebError("Cannot provide handler for '%s'" % node)