diff --git a/pylint/checkers/base_checker.py b/pylint/checkers/base_checker.py
index 86ba6e73a3..ea932314b5 100644
--- a/pylint/checkers/base_checker.py
+++ b/pylint/checkers/base_checker.py
@@ -49,8 +49,8 @@ def __init__(
         """
         if self.name is not None:
             self.name = self.name.lower()
-        super().__init__()
         self.linter = linter
+        super().__init__()
 
         if future_option_parsing:
             # We need a PyLinter object that subclasses _ArgumentsManager to register options
diff --git a/pylint/checkers/similar.py b/pylint/checkers/similar.py
index 69b401fa45..cf996ec30b 100644
--- a/pylint/checkers/similar.py
+++ b/pylint/checkers/similar.py
@@ -781,14 +781,14 @@ class SimilarChecker(BaseChecker, Similar, MapReduceMixin):
     reports = (("RP0801", "Duplication", report_similarities),)
 
     def __init__(self, linter=None) -> None:
-        BaseChecker.__init__(self, linter)
+        BaseChecker.__init__(self, linter, future_option_parsing=True)
         Similar.__init__(
             self,
-            min_lines=self.config.min_similarity_lines,
-            ignore_comments=self.config.ignore_comments,
-            ignore_docstrings=self.config.ignore_docstrings,
-            ignore_imports=self.config.ignore_imports,
-            ignore_signatures=self.config.ignore_signatures,
+            min_lines=self.linter.namespace.min_similarity_lines,
+            ignore_comments=self.linter.namespace.ignore_comments,
+            ignore_docstrings=self.linter.namespace.ignore_docstrings,
+            ignore_imports=self.linter.namespace.ignore_imports,
+            ignore_signatures=self.linter.namespace.ignore_signatures,
         )
 
     def set_option(self, optname, value, action=None, optdict=None):
@@ -796,17 +796,34 @@ def set_option(self, optname, value, action=None, optdict=None):
 
         Overridden to report options setting to Similar
         """
+        # pylint: disable-next=fixme
+        # TODO: Refactor after OptionProvider has been moved to argparse
         BaseChecker.set_option(self, optname, value, action, optdict)
         if optname == "min-similarity-lines":
-            self.min_lines = self.config.min_similarity_lines
+            self.min_lines = (
+                getattr(self.linter.namespace, "min_similarity_lines", None)
+                or self.config.min_similarity_lines
+            )
         elif optname == "ignore-comments":
-            self.ignore_comments = self.config.ignore_comments
+            self.ignore_comments = (
+                getattr(self.linter.namespace, "ignore_comments", None)
+                or self.config.ignore_comments
+            )
         elif optname == "ignore-docstrings":
-            self.ignore_docstrings = self.config.ignore_docstrings
+            self.ignore_docstrings = (
+                getattr(self.linter.namespace, "ignore_docstrings", None)
+                or self.config.ignore_docstrings
+            )
         elif optname == "ignore-imports":
-            self.ignore_imports = self.config.ignore_imports
+            self.ignore_imports = (
+                getattr(self.linter.namespace, "ignore_imports", None)
+                or self.config.ignore_imports
+            )
         elif optname == "ignore-signatures":
-            self.ignore_signatures = self.config.ignore_signatures
+            self.ignore_signatures = (
+                getattr(self.linter.namespace, "ignore_signatures", None)
+                or self.config.ignore_signatures
+            )
 
     def open(self):
         """Init the checkers: reset linesets and statistics information."""
@@ -861,15 +878,7 @@ def reduce_map_data(self, linter, data):
 
         The partner function of get_map_data()
         """
-        recombined = SimilarChecker(linter)
-        recombined.min_lines = self.min_lines
-        recombined.ignore_comments = self.ignore_comments
-        recombined.ignore_docstrings = self.ignore_docstrings
-        recombined.ignore_imports = self.ignore_imports
-        recombined.ignore_signatures = self.ignore_signatures
-        recombined.open()
-        Similar.combine_mapreduce_data(recombined, linesets_collection=data)
-        recombined.close()
+        Similar.combine_mapreduce_data(self, linesets_collection=data)
 
 
 def register(linter: "PyLinter") -> None:
diff --git a/tests/checkers/unittest_similar.py b/tests/checkers/unittest_similar.py
index 64ed46eb02..dae1628f1d 100644
--- a/tests/checkers/unittest_similar.py
+++ b/tests/checkers/unittest_similar.py
@@ -468,7 +468,7 @@ def test_get_map_data() -> None:
 
     # Manually perform a 'map' type function
     for source_fname in source_streams:
-        sim = similar.SimilarChecker(linter)
+        sim = similar.SimilarChecker(PyLinter())
         with open(source_fname, encoding="utf-8") as stream:
             sim.append_stream(source_fname, stream)
         # The map bit, can you tell? ;)