diff --git a/esbo_etc/classes/optical_component/__init__.py b/esbo_etc/classes/optical_component/__init__.py
index d8912f2..1f1884b 100644
--- a/esbo_etc/classes/optical_component/__init__.py
+++ b/esbo_etc/classes/optical_component/__init__.py
@@ -1,8 +1,8 @@
-from esbo_etc.classes.optical_component.AOpticalComponent import *
-from esbo_etc.classes.optical_component.Atmosphere import *
-from esbo_etc.classes.optical_component.StrayLight import *
-from esbo_etc.classes.optical_component.AHotOpticalComponent import *
-from esbo_etc.classes.optical_component.Filter import *
-from esbo_etc.classes.optical_component.Lens import *
-from esbo_etc.classes.optical_component.BeamSplitter import *
-from esbo_etc.classes.optical_component.Mirror import *
+from .AOpticalComponent import *
+from .Atmosphere import *
+from .StrayLight import *
+from .AHotOpticalComponent import *
+from .Filter import *
+from .Lens import *
+from .BeamSplitter import *
+from .Mirror import *
diff --git a/esbo_etc/classes/target/__init__.py b/esbo_etc/classes/target/__init__.py
index b1d8fbf..863660f 100644
--- a/esbo_etc/classes/target/__init__.py
+++ b/esbo_etc/classes/target/__init__.py
@@ -1,3 +1,3 @@
-from esbo_etc.classes.target.ATarget import *
-from esbo_etc.classes.target.BlackBodyTarget import *
-from esbo_etc.classes.target.FileTarget import *
+from .ATarget import *
+from .BlackBodyTarget import *
+from .FileTarget import *