diff --git a/735.patch b/735.patch
new file mode 100644
index 0000000..d2c448b
--- /dev/null
+++ b/735.patch
@@ -0,0 +1,28 @@
+From 323926afbf4d1337e1bcdfc07e7d8e64f6289bf1 Mon Sep 17 00:00:00 2001
+From: Patrick Uiterwijk <patrick@puiterwijk.org>
+Date: Dec 07 2017 01:55:04 +0000
+Subject: Fix encoding issue in runroot with python3
+
+
+This will make sure that the log from the server is correctly decoded, since
+sys.stdout only accepts strings, not raw bytes, which is what downloadTaskOutput
+returns.
+
+Signed-off-by: Patrick Uiterwijk <patrick@puiterwijk.org>
+
+---
+
+diff --git a/plugins/cli/runroot.py b/plugins/cli/runroot.py
+index f8d4b50..dc5d737 100644
+--- a/plugins/cli/runroot.py
++++ b/plugins/cli/runroot.py
+@@ -90,7 +90,7 @@ def handle_runroot(options, session, args):
+     if 'runroot.log' in output:
+         for volume in output['runroot.log']:
+             log = session.downloadTaskOutput(task_id, 'runroot.log', volume=volume)
+-            sys.stdout.write(log)
++            sys.stdout.write(log.decode('utf8'))
+     info = session.getTaskInfo(task_id)
+     if info is None:
+         sys.exit(1)
+
diff --git a/koji.spec b/koji.spec
index d266ac7..87354ed 100644
--- a/koji.spec
+++ b/koji.spec
@@ -26,7 +26,7 @@
 
 Name: koji
 Version: 1.14.0
-Release: 2%{?dist}
+Release: 3%{?dist}
 # koji.ssl libs (from plague) are GPLv2+
 License: LGPLv2 and GPLv2+
 Summary: Build system tools
@@ -38,6 +38,7 @@ Source0: https://releases.pagure.org/koji/koji-%{version}.tar.bz2
 Patch0:   https://pagure.io/koji/pull-request/708.patch
 Patch1:   https://pagure.io/koji/c/5574ad7.patch
 Patch2:   https://pagure.io/koji/c/73ebc0c.patch
+Patch3:   https://pagure.io/koji/pull-request/735.patch
 
 # Not upstreamable
 Patch100: fedora-config.patch
@@ -247,6 +248,7 @@ koji-web is a web UI to the Koji system.
 %patch0 -p1
 %patch1 -p1
 %patch2 -p1
+%patch3 -p1
 %patch100 -p1 -b .fedoraconfig
 
 %build
@@ -452,6 +454,9 @@ fi
 %endif
 
 %changelog
+* Thu Dec 07 2017 Patrick Uiterwijk <patrick@puiterwijk.org> - 1.14.0-3
+- Backport py3 runroot encoding patch (PR#735)
+
 * Mon Dec 04 2017 Patrick Uiterwijk <patrick@puiterwijk.org> - 1.14.0-2
 - Backport py3 keytab patch (PR#708)
 - Backport patches for exit code (issue#696)