diff --git a/sklearn/tree/_classes.py b/sklearn/tree/_classes.py
index 7393ef23cc48d..abbb738042156 100644
--- a/sklearn/tree/_classes.py
+++ b/sklearn/tree/_classes.py
@@ -1016,8 +1016,8 @@ def predict_log_proba(self, X):
             return proba
 
     @deprecated(  # type: ignore
-        "The attribute 'n_features_' is deprecated in 1.0 and will be removed "
-        "in 1.2. Use 'n_features_in_' instead."
+        "The attribute `n_features_` is deprecated in 1.0 and will be removed "
+        "in 1.2. Use `n_features_in_` instead."
     )
     @property
     def n_features_(self):
@@ -1336,8 +1336,8 @@ def _compute_partial_dependence_recursion(self, grid, target_features):
         return averaged_predictions
 
     @deprecated(  # type: ignore
-        "The attribute 'n_features_' is deprecated in 1.0 and will be removed "
-        "in 1.2. Use 'n_features_in_' instead."
+        "The attribute `n_features_` is deprecated in 1.0 and will be removed "
+        "in 1.2. Use `n_features_in_` instead."
     )
     @property
     def n_features_(self):
diff --git a/sklearn/tree/tests/test_tree.py b/sklearn/tree/tests/test_tree.py
index 2b5ec8359448d..adb4c0aa8aaec 100644
--- a/sklearn/tree/tests/test_tree.py
+++ b/sklearn/tree/tests/test_tree.py
@@ -2527,8 +2527,8 @@ def test_n_features_deprecated(Tree):
     # check that we raise a deprecation warning when accessing `n_features_`.
     # FIXME: remove in 1.2
     depr_msg = (
-        "The attribute 'n_features_' is deprecated in 1.0 and will be "
-        "removed in 1.2. Use 'n_features_in_' instead."
+        "The attribute `n_features_` is deprecated in 1.0 and will be "
+        "removed in 1.2. Use `n_features_in_` instead."
     )
 
     with pytest.warns(FutureWarning, match=depr_msg):