diff --git a/scopesim/effects/ter_curves.py b/scopesim/effects/ter_curves.py
index c49a93ae..cb7a0385 100644
--- a/scopesim/effects/ter_curves.py
+++ b/scopesim/effects/ter_curves.py
@@ -116,7 +116,8 @@ def apply_to(self, obj, **kwargs):
             # apply transmission to source spectra
             for fld in obj.fields:
                 if isinstance(fld, CubeSourceField):
-                    fld.field = apply_throughput_to_cube(fld.field, thru)
+                    fld.field = apply_throughput_to_cube(fld.field, thru,
+                                                         fld.wave)
                     continue
 
                 for isp, spec in fld.spectra.items():
diff --git a/scopesim/source/source.py b/scopesim/source/source.py
index edd6725f..d12bd361 100644
--- a/scopesim/source/source.py
+++ b/scopesim/source/source.py
@@ -368,17 +368,17 @@ def _get_fields(self, subclass):
 
     @property
     def table_fields(self):
-        """Return list of fields that are defined through tables."""
+        """List of fields that are defined through tables."""
         return list(self._get_fields(TableSourceField))
 
     @property
     def image_fields(self):
-        """Return list of fields that are defined through 2D images."""
+        """List of fields that are defined through 2D images."""
         return list(self._get_fields(ImageSourceField))
 
     @property
     def cube_fields(self):
-        """Return list of fields that are defined through 3D datacubes."""
+        """List of fields that are defined through 3D datacubes."""
         return list(self._get_fields(CubeSourceField))
 
     @property
diff --git a/scopesim/source/source_fields.py b/scopesim/source/source_fields.py
index adea2565..bc340ac1 100644
--- a/scopesim/source/source_fields.py
+++ b/scopesim/source/source_fields.py
@@ -203,7 +203,7 @@ class HDUSourceField(SourceField):
     def __new__(cls, *args, **kwargs):
         """Override creation to create subclasses."""
         if issubclass(cls, (CubeSourceField, ImageSourceField)):
-            # Allow for dirct subclass access
+            # Allow for direct subclass access
             return super().__new__(cls)
 
         field = kwargs.get("field", args[0])