diff --git a/python/lsst/daf/butler/configs/datastores/formatters.yaml b/python/lsst/daf/butler/configs/datastores/formatters.yaml
index a7fdde57ae..7fe3db49e7 100644
--- a/python/lsst/daf/butler/configs/datastores/formatters.yaml
+++ b/python/lsst/daf/butler/configs/datastores/formatters.yaml
@@ -82,6 +82,7 @@ ButlerLogRecords: lsst.daf.butler.formatters.logs.ButlerLogRecordsFormatter
 TaskMetadata: lsst.daf.butler.formatters.json.JsonFormatter
 SpectractorSpectrum: lsst.atmospec.formatters.SpectractorSpectrumFormatter
 SpectractorImage: lsst.atmospec.formatters.SpectractorImageFormatter
+SpectractorFitParameters: lsst.atmospec.formatters.SpectractorFitParametersFormatter
 ScarletModelData: lsst.daf.butler.formatters.json.JsonFormatter
 MetricMeasurementBundle: lsst.daf.butler.formatters.json.JsonFormatter
 MultipleCellCoadd: lsst.cell_coadds.CellCoaddFitsFormatter
diff --git a/python/lsst/daf/butler/configs/storageClasses.yaml b/python/lsst/daf/butler/configs/storageClasses.yaml
index f7a58c9d79..0234d937cf 100644
--- a/python/lsst/daf/butler/configs/storageClasses.yaml
+++ b/python/lsst/daf/butler/configs/storageClasses.yaml
@@ -388,6 +388,8 @@ storageClasses:
     pytype: spectractor.extractor.spectrum.Spectrum
   SpectractorImage:
     pytype: spectractor.extractor.images.Image
+  SpectractorFitParameters:
+    pytype: spectractor.fit.fitter.FitParameters
   ScarletModelData:
     pytype: lsst.meas.extensions.scarlet.ScarletModelData
   MetricMeasurementBundle: