diff --git a/colour_hdri/models/dng.py b/colour_hdri/models/dng.py
index 6200ec0..4b24c5e 100644
--- a/colour_hdri/models/dng.py
+++ b/colour_hdri/models/dng.py
@@ -214,6 +214,7 @@ def matrix_interpolated(
         return M_1
     if CCT >= CCT_2:
         return M_2
+
     return linear_conversion(1e6 / CCT, (1e6 / CCT_1, 1e6 / CCT_2), tstack([M_1, M_2]))