diff --git a/core/lls_core/models/lattice_data.py b/core/lls_core/models/lattice_data.py
index 838b56f5..a8816e0b 100644
--- a/core/lls_core/models/lattice_data.py
+++ b/core/lls_core/models/lattice_data.py
@@ -340,7 +340,7 @@ def _process_crop(self) -> Iterable[ImageSlice]:
                 if self.deconvolution is not None:
                     deconv_args = dict(
                         num_iter = self.deconvolution.psf_num_iter,
-                        psf = self.deconvolution.psf[slice.channel],
+                        psf = self.deconvolution.psf[slice.channel].to_numpy(),
                         decon_processing=self.deconvolution.decon_processing
                     )
 
diff --git a/core/pyproject.toml b/core/pyproject.toml
index e04bddd6..756d9260 100644
--- a/core/pyproject.toml
+++ b/core/pyproject.toml
@@ -83,7 +83,7 @@ testing = [
     "pytest-cov",  # https://pytest-cov.readthedocs.io/en/latest/
     "napari" # We use napari for type checking only, and not at runtime
 ]
-psf = [
+deconvolution = [
     "pycudadecon"
 ]