diff --git a/ci/test/00_setup_env_mac_host.sh b/ci/test/00_setup_env_mac_host.sh
index 314c8b6316..410f2aa413 100644
--- a/ci/test/00_setup_env_mac_host.sh
+++ b/ci/test/00_setup_env_mac_host.sh
@@ -10,7 +10,8 @@ export HOST=x86_64-apple-darwin18
 export PIP_PACKAGES="zmq"
 export GOAL="install"
 # ELEMENTS: add -fno-stack-check to work around clang bug on macos
-export BITCOIN_CONFIG="--with-gui --enable-reduce-exports --enable-werror --with-boost-process CXXFLAGS=-fno-stack-check"
+# ELEMENTS: remove --enable-werror because it triggers on Boost Thread includes (FIXME remove this after 22.0 rebase when boost-thread is removed)
+export BITCOIN_CONFIG="--with-gui --enable-reduce-exports --with-boost-process CXXFLAGS=-fno-stack-check"
 export CI_OS_NAME="macos"
 export NO_DEPENDS=1
 export OSX_SDK=""