diff --git a/IPython/lib/pylabtools.py b/IPython/lib/pylabtools.py
index 8c035cb..7fd3060 100644
--- a/IPython/lib/pylabtools.py
+++ b/IPython/lib/pylabtools.py
@@ -106,8 +106,6 @@ def print_figure(fig, fmt='png'):
     finally:
         fig.set_facecolor(fc)
         fig.set_edgecolor(ec)
-    if fmt == 'png':
-        data = data.encode('base64')
     return data
 
 
diff --git a/IPython/zmq/pylab/backend_inline.py b/IPython/zmq/pylab/backend_inline.py
index 7944ac1..7e4b2c5 100644
--- a/IPython/zmq/pylab/backend_inline.py
+++ b/IPython/zmq/pylab/backend_inline.py
@@ -42,7 +42,7 @@ class InlineBackendConfig(SingletonConfigurable):
     figure_format = CaselessStrEnum(['svg', 'png'], default_value='png', config=True,
         help="The image format for figures with the inline backend.")
 
-    def _format_changed(self, name, old, new):
+    def _figure_format_changed(self, name, old, new):
         if self.shell is None:
             return
         else: