diff --git a/root-avoid-race-condition-tutorial-roofit-rf512.patch b/root-avoid-race-condition-tutorial-roofit-rf512.patch
new file mode 100644
index 0000000..d0c40e8
--- /dev/null
+++ b/root-avoid-race-condition-tutorial-roofit-rf512.patch
@@ -0,0 +1,50 @@
+From 91de99623d0e945610be46d46e84b54985415aeb Mon Sep 17 00:00:00 2001
+From: Mattias Ellert <mattias.ellert@physics.uu.se>
+Date: Fri, 28 Oct 2022 06:27:10 +0200
+Subject: [PATCH] Avoid race condition between
+ tutorial/roofit/rf512_wsfactory_oper.C and
+ tutorial/roofit/rf512_wsfactory_oper.py
+
+When run in parallel they delete eachother's files:
+
+cc1plus: fatal error: /builddir/build/BUILD/root-6.26.08/redhat-linux-build/runtutorials/RooCFAuto000Pdf_cxx_ACLiC_dict.cxx: No such file or directory
+compilation terminated.
+/usr/bin/ld: cannot find /builddir/build/BUILD/root-6.26.08/redhat-linux-build/runtutorials/RooCFAuto000Pdf_cxx_ACLiC_dict.o: No such file or directory
+collect2: error: ld returned 1 exit status
+---
+ tutorials/CMakeLists.txt | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/tutorials/CMakeLists.txt b/tutorials/CMakeLists.txt
+index cfba4d3ed9..6ae9be5869 100644
+--- a/tutorials/CMakeLists.txt
++++ b/tutorials/CMakeLists.txt
+@@ -483,7 +483,7 @@ set(hist-hbars-depends  tutorial-tree-cernbuild)
+ set(benchmarks-depends tutorial-hsimple
+                        tutorial-fit-fit1
+                        tutorial-fit-myfit
+-					   tutorial-hist-h1ReadAndDraw
++                       tutorial-hist-h1ReadAndDraw
+                        tutorial-hist-FirstContour
+                        tutorial-geom-na49view
+                        tutorial-tree-ntuple1
+@@ -731,7 +731,7 @@ if(ROOT_pyroot_FOUND)
+   set(pyroot-benchmarks-depends tutorial-pyroot-hsimple-py
+                                 tutorial-pyroot-fit1-py
+                                 tutorial-pyroot-na49view-py
+-								tutorial-pyroot-h1ReadAndDraw-py
++                                tutorial-pyroot-h1ReadAndDraw-py
+                                 tutorial-pyroot-ntuple1-py)
+   set(pyroot-fit1-depends tutorial-pyroot-fillrandom-py)
+   set(pyroot-na49view-depends tutorial-pyroot-geometry-py)
+@@ -739,6 +739,7 @@ if(ROOT_pyroot_FOUND)
+ 
+   # Avoid a race condition: make sure Python tutorial is ran after C++ tutorial
+   set(roofit-rf104_classfactory-depends tutorial-roofit-rf104_classfactory)
++  set(roofit-rf512_wsfactory_oper-depends tutorial-roofit-rf512_wsfactory_oper)
+ 
+   #----------------------------------------------------------------------
+   # List requirements for python tutorials.
+-- 
+2.37.3
+
diff --git a/root.spec b/root.spec
index 85e9a9b..26a7f25 100644
--- a/root.spec
+++ b/root.spec
@@ -65,7 +65,7 @@
 Name:		root
 Version:	6.26.08
 %global libversion %(cut -d. -f 1-2 <<< %{version})
-Release:	1%{?dist}
+Release:	2%{?dist}
 Summary:	Numerical data analysis framework
 
 License:	LGPLv2+
@@ -181,6 +181,9 @@ Patch34:	%{name}-threadsh1-avoid-heap-use-after-free.patch
 Patch35:	%{name}-PyROOT-code.h-must-not-be-included-directly-in-3.11.patch
 Patch36:	%{name}-PyROOT-Prevent-cast-error-when-calling-PyTuple_SET_I.patch
 Patch37:	%{name}-Guard-gInterpreterMutex-in-TClingClassInfo-IsEnum.patch
+#		Avoid race condition between C++ an Python version of test
+#		https://github.com/root-project/root/pull/11643
+Patch38:	%{name}-avoid-race-condition-tutorial-roofit-rf512.patch
 
 %if %{?rhel}%{!?rhel:0} == 7
 BuildRequires:	devtoolset-8-toolchain
@@ -2047,6 +2050,7 @@ This package contains an ntuple extension for ROOT 7.
 %patch35 -p1
 %patch36 -p1
 %patch37 -p1
+%patch38 -p1
 
 # Remove bundled sources in order to be sure they are not used
 #  * afterimage
@@ -3983,6 +3987,9 @@ fi
 %endif
 
 %changelog
+* Fri Oct 28 2022 Mattias Ellert <mattias.ellert@physics.uu.se> - 6.26.08-2
+- Avoid race condition between C++ and Python version of a roofit test
+
 * Wed Oct 19 2022 Mattias Ellert <mattias.ellert@physics.uu.se> - 6.26.08-1
 - Update to 6.26.08
 - Drop patch root-move-private-decl.patch (fixed upstream)