diff --git a/options_mac.cmake b/options_mac.cmake
index ae73cc2..80ffb3d 100644
--- a/options_mac.cmake
+++ b/options_mac.cmake
@@ -25,6 +25,8 @@ INTERFACE
     -W
     -fPIE
     $<$<COMPILE_LANGUAGE:OBJC,OBJCXX>:-fobjc-weak>
+    -fvisibility-inlines-hidden
+    -fvisibility=hidden
     -Wno-deprecated-declarations # temp for range-v3
     -Wno-unused-variable
     -Wno-unused-parameter