diff --git a/konrad/radiation/arts.py b/konrad/radiation/arts.py
index 3aca4de6..0f22b91a 100644
--- a/konrad/radiation/arts.py
+++ b/konrad/radiation/arts.py
@@ -30,7 +30,7 @@ def __init__(self, ws=None, threads=None, nstreams=4, scale_vmr=True, verbosity=
                 scaled with the water-vapor concentration (default is `False.`)
             verbosity (int): Control the ARTS verbosity from 0 (quiet) to 2.
         """
-        from pyarts.workspace import Workspace, arts_agenda
+        from pyarts.workspace import Workspace
 
         self.nstreams = nstreams
         self.scale_vmr = scale_vmr