diff --git a/IPython/Extensions/ipy_synchronize_with.py b/IPython/Extensions/ipy_synchronize_with.py
index 93d4d5f..0623072 100644
--- a/IPython/Extensions/ipy_synchronize_with.py
+++ b/IPython/Extensions/ipy_synchronize_with.py
@@ -14,6 +14,11 @@ def setHook(synchronize_with_editor):
 
 
 def findFilename(filename):
+    filename = os.path.splitext(filename)
+    if filename[1] == ".pyc":
+        filename = (filename[0], ".py")
+    filename = "".join(filename)
+
     if not os.path.isabs(filename):
         filename = os.path.join(os.getcwd(), filename)