diff --git a/cmake/Modules/CommonConfig.cmake b/cmake/Modules/CommonConfig.cmake
index 1e3a1d006..7cfc0641c 100644
--- a/cmake/Modules/CommonConfig.cmake
+++ b/cmake/Modules/CommonConfig.cmake
@@ -19,6 +19,9 @@ target_compile_features(qbt_common_cfg INTERFACE
     cxx_std_20
 )
 
+set(CMAKE_CXX_VISIBILITY_PRESET hidden)
+set(CMAKE_VISIBILITY_INLINES_HIDDEN ON)
+
 target_compile_definitions(qbt_common_cfg INTERFACE
     QT_DISABLE_DEPRECATED_UP_TO=0x060500
     QT_NO_CAST_FROM_ASCII