diff --git a/mbedtls.changes b/mbedtls.changes
index 3e060aa..c6bce91 100644
--- a/mbedtls.changes
+++ b/mbedtls.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Apr 15 16:00:07 UTC 2021 - Martin Pluskal <mpluskal@suse.com>
+
+-  Workaround for building with gcc-11 boo#1181876
+
 -------------------------------------------------------------------
 Mon Mar 22 15:54:07 UTC 2021 - Guillaume GARDET <guillaume.gardet@opensuse.org>
 
diff --git a/mbedtls.spec b/mbedtls.spec
index 5e93e6f..942cc48 100644
--- a/mbedtls.spec
+++ b/mbedtls.spec
@@ -97,7 +97,10 @@ sed -i 's|//\(#define MBEDTLS_THREADING_PTHREAD\)|\1|' include/mbedtls/config.h
 
 %build
 %define __builder ninja
+export CFLAGS="%{optflags} -Wno-stringop-overflow -Wno-maybe-uninitialized"
+export CXXLAGS="%{optflags} -Wno-stringop-overflow -Wno-maybe-uninitialized"
 %cmake \
+  -DUNSAFE_BUILD=ON \
   -DLINK_WITH_PTHREAD=ON \
   -DUSE_PKCS11_HELPER_LIBRARY=ON \
   -DENABLE_ZLIB_SUPPORT=ON \