diff --git a/config.py b/config.py
index 4b2d7c5ac..bc99c6c94 100644
--- a/config.py
+++ b/config.py
@@ -14,7 +14,8 @@ expansionVersion = "1.1.0"
 
 # The main pyfa directory which contains run.py
 # Python 2.X uses ANSI by default, so we need to convert the character encoding
-pyfaPath = unicode(os.path.dirname(os.path.abspath(sys.modules['__main__'].__file__)), sys.getfilesystemencoding())
+if hasattr(sys.modules['__main__'], '__file__'):
+    pyfaPath = unicode(os.path.dirname(os.path.abspath(sys.modules['__main__'].__file__)), sys.getfilesystemencoding())
 
 # Where we store the saved fits etc, default is the current users home directory
 savePath = unicode(os.path.expanduser(os.path.join("~", ".pyfa")), sys.getfilesystemencoding())