diff --git a/CHANGES.rst b/CHANGES.rst
index 6f7279e8011..e0a9f12f28d 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -18,6 +18,10 @@ Features added
 Bugs fixed
 ----------
 
+* #13230: Fix the ``toc.empty_glob`` warning sub-type not being suppressible
+  via :confval:`suppress_warnings`, due to a missing ``type='toc'`` argument
+  in the toctree directive's warning call.
+  Patch by Ferdinand Schwenk.
 * #14189: autodoc: Fix duplicate ``:no-index-entry:`` for modules.
   Patch by Adam Turner
 * #13713: Fix compatibility with MyST-Parser.
diff --git a/sphinx/directives/other.py b/sphinx/directives/other.py
index 80bedce43cb..9d50d772e65 100644
--- a/sphinx/directives/other.py
+++ b/sphinx/directives/other.py
@@ -119,6 +119,7 @@ def parse_content(self, toctree: addnodes.toctree) -> None:
                         __("toctree glob pattern %r didn't match any documents"),
                         entry,
                         location=toctree,
+                        type='toc',
                         subtype='empty_glob',
                     )
 
diff --git a/tests/test_directives/test_directive_other.py b/tests/test_directives/test_directive_other.py
index 1aa370cce8d..42f0ea60a34 100644
--- a/tests/test_directives/test_directive_other.py
+++ b/tests/test_directives/test_directive_other.py
@@ -127,6 +127,28 @@ def test_toctree_glob_and_url(app):
     )
 
 
+@pytest.mark.sphinx('html', testroot='toctree-glob')
+def test_toctree_glob_empty_emits_warning(app):
+    """An unmatched glob pattern emits a toc.empty_glob warning."""
+    text = '.. toctree::\n   :glob:\n\n   nonexistent*\n'
+    app.env.find_files(app.config, app.builder)
+    restructuredtext.parse(app, text, 'index')
+    assert "toctree glob pattern 'nonexistent*' didn't match any documents" in app._warning.getvalue()
+
+
+@pytest.mark.sphinx(
+    'html',
+    testroot='toctree-glob',
+    confoverrides={'suppress_warnings': ['toc.empty_glob']},
+)
+def test_toctree_glob_empty_suppressed(app):
+    """suppress_warnings=['toc.empty_glob'] must suppress the empty glob warning."""
+    text = '.. toctree::\n   :glob:\n\n   nonexistent*\n'
+    app.env.find_files(app.config, app.builder)
+    restructuredtext.parse(app, text, 'index')
+    assert app._warning.getvalue() == ''
+
+
 @pytest.mark.sphinx('html', testroot='toctree-glob')
 def test_reversed_toctree(app):
     text = '.. toctree::\n   :reversed:\n\n   foo\n   bar/index\n   baz\n'