diff --git a/0001-fix-strict-aliasing.patch b/0001-fix-strict-aliasing.patch
new file mode 100644
index 0000000..7bce640
--- /dev/null
+++ b/0001-fix-strict-aliasing.patch
@@ -0,0 +1,24 @@
+From 25c6247b43c5954da43c9b2f27e9a5e6bb1d651a Mon Sep 17 00:00:00 2001
+From: Tomas Krizek <tomas.krizek@nic.cz>
+Date: Thu, 2 Apr 2020 14:52:41 +0200
+Subject: [PATCH] fix strict aliasing
+
+---
+ meson.build | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/meson.build b/meson.build
+index a839eb23..8c584aaf 100644
+--- a/meson.build
++++ b/meson.build
+@@ -111,6 +111,7 @@ add_project_arguments(
+   '-Wtype-limits',
+   '-Wshadow',
+   '-fvisibility=hidden',
++  '-fno-strict-aliasing',
+   language: 'c',
+ )
+ 
+-- 
+2.26.0
+
diff --git a/knot-resolver.spec b/knot-resolver.spec
index 8e6a6c7..f08e593 100644
--- a/knot-resolver.spec
+++ b/knot-resolver.spec
@@ -8,12 +8,13 @@
 
 Name:           knot-resolver
 Version:        %{VERSION}
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Caching full DNS Resolver
 
 License:        GPLv3
 URL:            https://www.knot-resolver.cz/
 Source0:        https://secure.nic.cz/files/%{name}/%{name}-%{version}.tar.xz
+Patch0:         0001-fix-strict-aliasing.patch
 
 # LuaJIT only on these arches
 %if 0%{?rhel}
@@ -144,6 +145,7 @@ gpg2 --import %{SOURCE100} %{SOURCE101} %{SOURCE102}
 gpg2 --verify %{SOURCE1} %{SOURCE0}
 %endif
 %setup -q -n %{name}-%{version}
+%patch0 -p1
 
 %build
 CFLAGS="%{optflags}" LDFLAGS="%{?__global_ldflags}" meson build_rpm \
@@ -335,6 +337,9 @@ fi
 %endif
 
 %changelog
+* Thu Apr 02 2020 Tomas Krizek <tomas.krizek@nic.cz> - 5.0.1-2
+- add patch to fix strict aliasing (!971) until next release
+
 * Wed Feb 05 2020 Tomas Krizek <tomas.krizek@nic.cz> - 5.0.1-1
 - update to upstream version 5.0.1
 - ensure kres-cache-gc.service is restarted on upgrade