diff --git a/pandas/core/indexes/multi.py b/pandas/core/indexes/multi.py
index dd63ea94d5211..61f61464db42c 100644
--- a/pandas/core/indexes/multi.py
+++ b/pandas/core/indexes/multi.py
@@ -3864,10 +3864,6 @@ def set_names(self, names, level=None, inplace: bool = False) -> MultiIndex | No
 
     rename = set_names
 
-    @deprecate_nonkeyword_arguments(version=None, allowed_args=["self"])
-    def drop_duplicates(self, keep: str | bool = "first") -> MultiIndex:
-        return super().drop_duplicates(keep=keep)
-
     # ---------------------------------------------------------------
     # Arithmetic/Numeric Methods - Disabled
 
diff --git a/pandas/tests/indexes/multi/test_duplicates.py b/pandas/tests/indexes/multi/test_duplicates.py
index 6832fb77ed30d..ea21f28409699 100644
--- a/pandas/tests/indexes/multi/test_duplicates.py
+++ b/pandas/tests/indexes/multi/test_duplicates.py
@@ -332,7 +332,7 @@ def test_multi_drop_duplicates_pos_args_deprecation():
     idx = MultiIndex.from_arrays([[1, 2, 3, 1], [1, 2, 3, 1]])
     msg = (
         "In a future version of pandas all arguments of "
-        "MultiIndex.drop_duplicates will be keyword-only"
+        "Index.drop_duplicates will be keyword-only"
     )
     with tm.assert_produces_warning(FutureWarning, match=msg):
         result = idx.drop_duplicates("last")