diff --git a/satpy/composites/__init__.py b/satpy/composites/__init__.py
index 8ed200df4c..62ac07aad8 100644
--- a/satpy/composites/__init__.py
+++ b/satpy/composites/__init__.py
@@ -792,7 +792,8 @@ def _weight_data(self, day_data, night_data, weights, attrs):
         if not self.include_alpha:
             fill = 1 if self.day_night == "night_only" else 0
             weights = weights.where(~np.isnan(weights), fill)
-
+        if isinstance(weights, xr.DataArray):
+            weights = weights.data
         data = []
         for b in _get_band_names(day_data, night_data):
             # if self.day_night == "night_only" and self.include_alpha is False: