diff --git a/src/postprocessor/core/processes/savgol.py b/src/postprocessor/core/processes/savgol.py
index f697bbcf04dc08395f4cdd2d5b3db8a30a0276a4..14686adc635fa16ef3e5e1460dad29b65171321f 100644
--- a/src/postprocessor/core/processes/savgol.py
+++ b/src/postprocessor/core/processes/savgol.py
@@ -41,7 +41,7 @@ class savgol(PostProcessABC):
             print(e)
 
             def savgol_on_srs(x):
-                return self.non_uniform_savgol(
+                return non_uniform_savgol(
                     x.index,
                     x.values,
                     self.parameters.window,