diff --git a/apps/ci/mac/ci-compile.sh b/apps/ci/mac/ci-compile.sh
index 760169184..5bd9254f5 100755
--- a/apps/ci/mac/ci-compile.sh
+++ b/apps/ci/mac/ci-compile.sh
@@ -20,6 +20,7 @@ time cmake ../../../ \
 -DOPENSSL_INCLUDE_DIR=/usr/local/opt/openssl/include \
 -DOPENSSL_SSL_LIBRARIES=/usr/local/opt/openssl/lib/libssl.dylib \
 -DOPENSSL_CRYPTO_LIBRARIES=/usr/local/opt/openssl/lib/libcrypto.dylib \
+-DWITH_WARNINGS=1 \
 -DCMAKE_C_FLAGS="-Werror" \
 -DCMAKE_CXX_FLAGS="-Werror" \
 -DCMAKE_C_COMPILER_LAUNCHER=ccache \