diff --git a/omnigraffle_export/omnigraffle.py b/omnigraffle_export/omnigraffle.py
index ed5cc5e..8f1749d 100644
--- a/omnigraffle_export/omnigraffle.py
+++ b/omnigraffle_export/omnigraffle.py
@@ -85,7 +85,10 @@ def active_canvas_name(self):
 class OmniGraffle(object):
 
     def __init__(self):
-        self.og = app('OmniGraffle 5.app')
+        try:
+            self.og = app('OmniGraffle 5.app')
+        except:
+            self.og = app('OmniGraffle Professional 5.app')
 
     def active_document(self):
         self.og.activate()