diff --git a/vsdeband/noise.py b/vsdeband/noise.py
index 8f37619..c084b62 100644
--- a/vsdeband/noise.py
+++ b/vsdeband/noise.py
@@ -238,7 +238,7 @@ def _try_grain(src: vs.VideoNode, stre: tuple[float, float] = strength, **args:
             grained = _wrap_implementation(clip, True)
 
         if do_taverage:
-            average = grained.std.AverageFrames(BlurMatrix.gauss_from_radius(self.temporal_radius))
+            average = grained.std.AverageFrames(BlurMatrix.GAUSS.from_radius(self.temporal_radius))
             grained = grained.std.Merge(average, self.temporal_average)
             grained = grained[self.temporal_radius:-self.temporal_radius]