diff --git a/.config/ags/scripts/color_generation/generate_colors_material.py b/.config/ags/scripts/color_generation/generate_colors_material.py
index 578347b5..ea4cfaa9 100755
--- a/.config/ags/scripts/color_generation/generate_colors_material.py
+++ b/.config/ags/scripts/color_generation/generate_colors_material.py
@@ -46,7 +46,7 @@ if args.path is not None:
     wsize_new, hsize_new = calculate_optimal_size(wsize, hsize, args.size)
     if wsize_new < wsize or hsize_new < hsize:
         image = image.resize((wsize_new, hsize_new), Image.Resampling.BICUBIC)
-    colors = QuantizeCelebi(image.getdata(), 128)
+    colors = QuantizeCelebi(list(image.getdata()), 128)
     argb = Score.score(colors)[0]
 
     if args.cache is not None: