diff --git a/SOURCES/tuna-Fix-tuna-include-option-breakage.patch b/SOURCES/tuna-Fix-tuna-include-option-breakage.patch
new file mode 100644
index 0000000..fc50c80
--- /dev/null
+++ b/SOURCES/tuna-Fix-tuna-include-option-breakage.patch
@@ -0,0 +1,51 @@
+From cd9e707b23980ed568aeddac6eaa2125b651c6cc Mon Sep 17 00:00:00 2001
+From: John Kacur <jkacur@redhat.com>
+Date: Wed, 3 Mar 2021 10:45:28 -0500
+Subject: [PATCH] tuna: Fix tuna --include option breakage
+
+The change to remove the dependency on python-schedutils
+broke the --include function.
+
+get_affinity(pid) from python-schedutils returned a list
+os.sched_getaffinity(pid) returns a set
+
+In many cases they can be interchanged, but not with the '+' operation
+Fix this by changing affinity to a list before concatenation
+
+Reported-by: Mark Simmons <msimmons@redhat.com>
+Signed-off-by: John Kacur <jkacur@redhat.com>
+---
+ tuna/tuna.py | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/tuna/tuna.py b/tuna/tuna.py
+index e5122dac1081..614a8250b054 100755
+--- a/tuna/tuna.py
++++ b/tuna/tuna.py
+@@ -431,9 +431,9 @@ def include_cpus(cpus, nr_cpus):
+             if err.args[0] == errno.ESRCH:
+                 continue
+             raise err
+-        if set(affinity).intersection(set(cpus)) != set(cpus):
++        if affinity.intersection(set(cpus)) != set(cpus):
+             previous_pid_affinities[pid] = copy.copy(affinity)
+-            affinity = list(set(affinity + cpus))
++            affinity = list(affinity) + cpus
+             try:
+                 os.sched_setaffinity(pid, affinity)
+             except OSError as err:
+@@ -453,9 +453,9 @@ def include_cpus(cpus, nr_cpus):
+                 if err.args[0] == errno.ESRCH:
+                     continue
+                 raise err
+-            if set(affinity).intersection(set(cpus)) != set(cpus):
++            if affinity.intersection(set(cpus)) != set(cpus):
+                 previous_pid_affinities[tid] = copy.copy(affinity)
+-                affinity = list(set(affinity + cpus))
++                affinity = list(affinity) + cpus
+                 try:
+                     os.sched_setaffinity(tid, affinity)
+                 except OSError as err:
+-- 
+2.26.2
+
diff --git a/SPECS/tuna.spec b/SPECS/tuna.spec
index 7dcf56e..2d502e1 100644
--- a/SPECS/tuna.spec
+++ b/SPECS/tuna.spec
@@ -1,6 +1,6 @@
 Name: tuna
 Version: 0.15
-Release: 1%{?dist}
+Release: 2%{?dist}
 License: GPLv2
 Summary: Application tuning GUI & command line utility
 Group: Applications/System
@@ -16,6 +16,7 @@ Requires: python3-linux-procfs >= 0.6
 BuildRoot: %(mktemp -ud %{_tmppath}/%{name}-%{version}-%{release}-XXXXXX)
 
 # PATCHES
+Patch1: tuna-Fix-tuna-include-option-breakage.patch
 
 %description
 Provides interface for changing scheduler and IRQ tunables, at whole CPU and at
@@ -28,6 +29,7 @@ installed.
 
 %prep
 %setup -q
+%patch1 -p1
 
 %build
 %{__python3} setup.py build
@@ -74,6 +76,10 @@ rm -rf %{buildroot}
 %{_datadir}/polkit-1/actions/org.tuna.policy
 
 %changelog
+* Thu Mar 04 2021 John Kacur <jkacur@redhat.com> - 0.15-2
+- Fix tuna's include option
+Resolves: rhbz#1934594
+
 * Thu Jan 21 2021 John Kacur <jkacur@redhat.com> - 0.15-1
 - Upgrade to latest upstream code
 - Upstream drops python-schedutils and uses built-in schedutils