diff --git a/esbo_etc/classes/psf/__init__.py b/esbo_etc/classes/psf/__init__.py
index 4a0e3e1..cf73c9c 100644
--- a/esbo_etc/classes/psf/__init__.py
+++ b/esbo_etc/classes/psf/__init__.py
@@ -1,2 +1,3 @@
 from .IPSF import *
-from.Zemax import *
\ No newline at end of file
+from .Zemax import *
+from .Airy import *