diff --git a/9b8da4b1e2bdc025b643f2061aa32bf7ae0c78a8.patch b/9b8da4b1e2bdc025b643f2061aa32bf7ae0c78a8.patch
new file mode 100644
index 0000000..a757da3
--- /dev/null
+++ b/9b8da4b1e2bdc025b643f2061aa32bf7ae0c78a8.patch
@@ -0,0 +1,38 @@
+From 9b8da4b1e2bdc025b643f2061aa32bf7ae0c78a8 Mon Sep 17 00:00:00 2001
+From: Mike Bayer <mike_mp@zzzcomputing.com>
+Date: Sat, 9 Apr 2022 11:43:32 -0400
+Subject: [PATCH] reduce exception message tested for py311 compat
+
+Change-Id: I519d4a840fd456ea042a5b0735da183a1e340aa4
+---
+ test/test_exceptions.py | 10 ++--------
+ 1 file changed, 2 insertions(+), 8 deletions(-)
+
+diff --git a/test/test_exceptions.py b/test/test_exceptions.py
+index b1930c5..7a2e6b0 100644
+--- a/test/test_exceptions.py
++++ b/test/test_exceptions.py
+@@ -274,10 +274,7 @@ def test_tback_no_trace_from_py_file(self):
+         html_error = exceptions.html_error_template().render_unicode(
+             error=v, traceback=None
+         )
+-        assert (
+-            "local variable &#39;y&#39; referenced before assignment"
+-            in html_error
+-        )
++        assert "local variable &#39;y&#39;" in html_error
+ 
+     def test_tback_trace_from_py_file(self):
+         t = self._file_template("runtimeerr.html")
+@@ -287,10 +284,7 @@ def test_tback_trace_from_py_file(self):
+         except:
+             html_error = exceptions.html_error_template().render_unicode()
+ 
+-        assert (
+-            "local variable &#39;y&#39; referenced before assignment"
+-            in html_error
+-        )
++        assert "local variable &#39;y&#39;" in html_error
+ 
+     def test_code_block_line_number(self):
+         l = TemplateLookup()
diff --git a/python-mako.spec b/python-mako.spec
index 3e1e3d7..7561217 100644
--- a/python-mako.spec
+++ b/python-mako.spec
@@ -9,6 +9,9 @@ Summary: Mako template library for Python
 URL: http://www.makotemplates.org/
 Source0: https://github.com/sqlalchemy/mako/archive/rel_%(echo %{version} | sed "s/\./_/g").tar.gz
 
+# patch for Python 3.11 compatibility to reduce exception message
+Patch: https://github.com/sqlalchemy/mako/commit/9b8da4b1e2bdc025b643f2061aa32bf7ae0c78a8.patch
+
 BuildRequires: python3-devel
 BuildRequires: python3-pytest
 BuildRequires: python3-setuptools