diff --git a/IPython/nbconvert/exporters/exporter.py b/IPython/nbconvert/exporters/exporter.py
index 691b631..3b6aeb4 100755
--- a/IPython/nbconvert/exporters/exporter.py
+++ b/IPython/nbconvert/exporters/exporter.py
@@ -372,7 +372,7 @@ class Exporter(Configurable):
         else:
             resources['metadata'] = ResourcesDict()
             if not resources['metadata']['name']: 
-                resources['metadata']['name']: = 'Notebook'
+                resources['metadata']['name'] = 'Notebook'
 
         #Set the output extension
         resources['output_extension'] = self.file_extension