diff --git a/testing/test_mark.py b/testing/test_mark.py
index bbddf5476..cc5b3290e 100644
--- a/testing/test_mark.py
+++ b/testing/test_mark.py
@@ -345,6 +345,24 @@ class TestFunctional:
         assert l[0].args == ("pos0",)
         assert l[1].args == ("pos1",)
 
+    def test_no_marker_match_on_unmarked_names(self, testdir):
+        p = testdir.makepyfile("""
+            import pytest
+            @pytest.mark.shouldmatch
+            def test_marked():
+                assert 1
+
+            def test_unmarked():
+                assert 1
+        """)
+        reprec = testdir.inline_run("-m", "test_unmarked", p)
+        passed, skipped, failed = reprec.listoutcomes()
+        assert len(passed) + len(skipped) + len(failed) == 0
+        dlist = reprec.getcalls("pytest_deselected")
+        deselected_tests = dlist[0].items
+        assert len(deselected_tests) == 2
+
+
     def test_keywords_at_node_level(self, testdir):
         p = testdir.makepyfile("""
             import pytest
@@ -453,7 +471,8 @@ class TestKeywordSelection:
             passed, skipped, failed = reprec.countoutcomes()
             dlist = reprec.getcalls("pytest_deselected")
             assert passed + skipped + failed == 0
-            assert len(dlist) == 1
+            deselected_tests = dlist[0].items
+            assert len(deselected_tests) == 1
 
         assert_test_is_not_selected("__")
         assert_test_is_not_selected("()")