diff --git a/src/arpes/analysis/band_analysis.py b/src/arpes/analysis/band_analysis.py
index b50d9d71..d5aa8f66 100644
--- a/src/arpes/analysis/band_analysis.py
+++ b/src/arpes/analysis/band_analysis.py
@@ -215,11 +215,14 @@ def _identified_band_results_etc(
 
     Args:
         band_results (xr.DataArray): band results.
+            the value must be the array of lmfit.model.ModelResul
+            return of broadcast_model().results
         weights (tuple[float, float, float]): weight values for sigma, amplitude, center
 
     Returns:
         [TODO:description]
     """
+    band_results = band_results if isinstance(band_results, xr.DataArray) else band_results.results
     prefixes = [component.prefix for component in band_results.values[0].model.components]
 
     identified_band_results = copy.deepcopy(band_results)