diff --git a/_pytest/python_api.py b/_pytest/python_api.py
index e6f002849..5bbf3ac7a 100644
--- a/_pytest/python_api.py
+++ b/_pytest/python_api.py
@@ -571,7 +571,6 @@ def raises(expected_exception, *args, **kwargs):
             message = kwargs.pop("message")
         if "match" in kwargs:
             match_expr = kwargs.pop("match")
-            message += " matching '{0}'".format(match_expr)
         return RaisesContext(expected_exception, message, match_expr)
     elif isinstance(args[0], str):
         code, = args
diff --git a/changelog/3222.trivial b/changelog/3222.trivial
new file mode 100644
index 000000000..fbbbd5510
--- /dev/null
+++ b/changelog/3222.trivial
@@ -0,0 +1 @@
+The "matching '...'" part got removed from ``pytest.raises()`` error messages as it falsely implies that an exception was raised but it didn't match.
\ No newline at end of file