diff --git a/comparator.py b/comparator.py
index 437445c..05a377c 100644
--- a/comparator.py
+++ b/comparator.py
@@ -47,7 +47,9 @@ class Comparator(Aggregator, HDF5Container):
 
         # Select runs
         if selector is None:
-            selector = RunSelector(path, in_runs, in_nums, self.pp_params, **kwargs)
+            selector = RunSelector(
+                path, in_runs, in_nums, self.pp_params.input.nml_filename, **kwargs
+            )
 
         # Save infos
         self.path = path
diff --git a/plotter.py b/plotter.py
index 52b2ce2..8bb0c2b 100644
--- a/plotter.py
+++ b/plotter.py
@@ -151,7 +151,7 @@ class Plotter(Aggregator, BaseProcessor):
         # Select runs
         if selector is None:
             self.selector = RunSelector(
-                path, in_runs, in_nums, self.pp_params, **kwargs
+                path, in_runs, in_nums, self.pp_params.input.nml_filename, **kwargs
             )
         else:
             self.selector = selector
diff --git a/run_selector.py b/run_selector.py
index d056dde..9385b38 100644
--- a/run_selector.py
+++ b/run_selector.py
@@ -10,8 +10,6 @@ import numpy as np
 import yaml
 import f90nml
 
-from pp_params import default_params
-
 
 class NamelistRecursive:
     def __init__(self, namelist):
@@ -44,7 +42,7 @@ class RunSelector:
         path_in,
         in_runs=None,
         in_nums="all",
-        pp_params=default_params(),
+        nml_filename="run.nml",
         filter_name="*",
         filter_nml={},
         sort_run_by=None,
@@ -71,6 +69,7 @@ class RunSelector:
                   "last" select only the last output.
                   "all" preselect all outputs (default)
 
+        nml_filename : str name of the namelist (should be the same for all outputs)
 
         filter_name : str, filter runs by name. Default "*"
         filter_nml  : tuple or list of tupple.
@@ -91,7 +90,7 @@ class RunSelector:
         """
 
         self.path_in = path_in
-        self.pp_params = pp_params
+        self.nml_filename = nml_filename
 
         self.namelist = {}
         self.runs = self.get_runs(in_runs, filter_name, filter_nml, sort_run_by)
@@ -194,7 +193,7 @@ class RunSelector:
 
     def load_namelist(self, run):
         path_run = self.path_in + "/" + run
-        path_nml = path_run + "/" + self.pp_params.input.nml_filename
+        path_nml = path_run + "/" + self.nml_filename
         return NamelistRecursive(f90nml.read(path_nml))
 
     def get_nml_value(self, nml_key, run):