diff --git a/0001-cppheaderparser-silence-invalid-escape-sequence.patch b/0001-cppheaderparser-silence-invalid-escape-sequence.patch
new file mode 100644
index 0000000..a46a103
--- /dev/null
+++ b/0001-cppheaderparser-silence-invalid-escape-sequence.patch
@@ -0,0 +1,35 @@
+From ef1fb4dc1fc8797fd70c45e31cf3ae5e6447740a Mon Sep 17 00:00:00 2001
+From: Tom Rix <trix@redhat.com>
+Date: Thu, 11 Jan 2024 08:16:09 -0500
+Subject: [PATCH] cppheaderparser silence invalid escape sequence
+
+Signed-off-by: Tom Rix <trix@redhat.com>
+---
+ CppHeaderParser/CppHeaderParser.py | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/CppHeaderParser/CppHeaderParser.py b/CppHeaderParser/CppHeaderParser.py
+index 06a17fc..8dfe8ba 100644
+--- a/CppHeaderParser/CppHeaderParser.py
++++ b/CppHeaderParser/CppHeaderParser.py
+@@ -149,7 +149,7 @@ def t_COMMENT_MULTILINE(t):
+         #not sure why, but get double new lines
+         v = t.value.replace("\n\n", "\n")
+         #strip prefixing whitespace
+-        v = re.sub("\n[\s]+\*", "\n*", v)
++        v = re.sub(r"\n[\s]+\*", "\n*", v)
+         doxygenCommentCache += v
+     t.lexer.lineno += len([a for a in t.value if a=="\n"])
+ def t_NEWLINE(t):
+@@ -834,7 +834,7 @@ class CppMethod( _CppMethod ):
+             doxyLines = self["doxygen"].split("\n")
+             lastParamDesc = ""
+             for doxyLine in doxyLines:
+-                if " @param " in doxyLine or " \param " in doxyLine:
++                if " @param " in doxyLine or r" \param " in doxyLine:
+                     try:
+                         #Strip out the param
+                         doxyLine = doxyLine[doxyLine.find("param ") + 6:]
+-- 
+2.43.0
+
diff --git a/python-cppheaderparser.spec b/python-cppheaderparser.spec
index a005a18..fbee87f 100644
--- a/python-cppheaderparser.spec
+++ b/python-cppheaderparser.spec
@@ -2,12 +2,14 @@
 
 Name:           python-%{pypi_name}
 Version:        2.7.4
-Release:        10%{?dist}
+Release:        11%{?dist}
 Summary:        Parse C++ header files and generate a data structure
 
-License:        BSD
+License:        BSD-3-Clause
 URL:            http://senexcanis.com/open-source/cppheaderparser/
 Source0:        %{pypi_source CppHeaderParser}
+Patch0:         0001-cppheaderparser-silence-invalid-escape-sequence.patch
+
 BuildArch:      noarch
 
 %description
@@ -26,7 +28,7 @@ Parse C++ header files and generate a data structure representing the
 class.
 
 %prep
-%autosetup -n CppHeaderParser-%{version}
+%autosetup -p1 -n CppHeaderParser-%{version}
 rm -rf %{pypi_name}.egg-info
 # Remove outdated parts (Python 2.x)
 rm -rf CppHeaderParser/{examples,docs}
@@ -44,6 +46,10 @@ sed -i -e '/^#!\//, 1d' CppHeaderParser/CppHeaderParser.py
 %{python3_sitelib}/CppHeaderParser-%{version}-py%{python3_version}.egg-info/
 
 %changelog
+* Thu Jan 11 2024 Tom Rix <trix@redhat.com> - 2.7.4-11
+- Silence invalid escape sequence warnings
+- Use spdx license
+
 * Fri Jul 21 2023 Fedora Release Engineering <releng@fedoraproject.org> - 2.7.4-10
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild
 
@@ -72,4 +78,4 @@ sed -i -e '/^#!\//, 1d' CppHeaderParser/CppHeaderParser.py
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
 
 * Thu Sep 17 2020 Fabian Affolter <mail@fabian-affolter.ch> - 2.7.4-1
-- Initial package for Fedora
\ No newline at end of file
+- Initial package for Fedora