diff --git a/fpdf/deprecation.py b/fpdf/deprecation.py
index 8bf4dc8c6..dfbb0520c 100644
--- a/fpdf/deprecation.py
+++ b/fpdf/deprecation.py
@@ -14,7 +14,7 @@ def __getattr__(self, name):
             )
             return None
         # pylint: disable=no-member
-        return super().__getattr__(self, name)
+        return super().__getattr__(name)
 
     def __setattr__(self, name, value):
         if name in ("FPDF_CACHE_DIR", "FPDF_CACHE_MODE"):
@@ -26,4 +26,4 @@ def __setattr__(self, name, value):
                 stacklevel=2,
             )
             return
-        super().__setattr__(self, name, value)
+        super().__setattr__(name, value)
diff --git a/test/fonts/test_add_font.py b/test/fonts/test_add_font.py
index 0c4962392..e4c6022d5 100644
--- a/test/fonts/test_add_font.py
+++ b/test/fonts/test_add_font.py
@@ -39,6 +39,9 @@ def test_deprecation_warning_for_FPDF_CACHE_DIR():
     with pytest.warns(DeprecationWarning):
         fpdf.FPDF_CACHE_MODE = 1
 
+    fpdf.SOME = 1
+    assert fpdf.SOME == 1
+
     import fpdf
 
     with pytest.warns(DeprecationWarning):
@@ -50,6 +53,9 @@ def test_deprecation_warning_for_FPDF_CACHE_DIR():
     with pytest.warns(DeprecationWarning):
         fpdf.FPDF_CACHE_MODE = 1
 
+    fpdf.SOME = 1
+    assert fpdf.SOME == 1
+
 
 def test_add_font_unicode_with_path_fname_ok(tmp_path):
     for font_cache_dir in (True, tmp_path):