diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0a4e9e7e..ce7d08fe 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -184,6 +184,10 @@ if(GCC)
             add_definitions(-march=i686)
         endif()
     endif()
+
+    set(CMAKE_C_VISIBILITY_PRESET hidden)
+    set(CMAKE_CXX_VISIBILITY_PRESET hidden)
+
     # disable multichar warning
     add_definitions(-Wno-multichar)
 endif(GCC)
diff --git a/mpp/CMakeLists.txt b/mpp/CMakeLists.txt
index 0032f988..24b29de0 100644
--- a/mpp/CMakeLists.txt
+++ b/mpp/CMakeLists.txt
@@ -34,6 +34,7 @@ add_library(mpp STATIC ${MPP_SRC})
 set_target_properties(mpp PROPERTIES FOLDER "mpp") 
 set_target_properties(mpp PROPERTIES CLEAN_DIRECT_OUTPUT 1)
 target_link_libraries(mpp mpp_base mpp_codec mpp_hal)
+set_target_properties(mpp PROPERTIES C_VISIBILITY_PRESET default)
 
 add_library(mpp_shared SHARED ${MPP_SRC})
 set_target_properties(mpp_shared PROPERTIES FOLDER "mpp") 
diff --git a/mpp/legacy/CMakeLists.txt b/mpp/legacy/CMakeLists.txt
index bf091c37..b56a485c 100644
--- a/mpp/legacy/CMakeLists.txt
+++ b/mpp/legacy/CMakeLists.txt
@@ -21,6 +21,8 @@ add_library(mpp_legacy_shared SHARED ${MPP_LEGACY_SRC})
 set_target_properties(mpp_legacy_shared PROPERTIES FOLDER "mpp/legacy")
 set_target_properties(mpp_legacy_shared PROPERTIES OUTPUT_NAME "vpu") 
 set_target_properties(mpp_legacy_shared PROPERTIES CLEAN_DIRECT_OUTPUT 1)
+set_target_properties(mpp_legacy_shared PROPERTIES C_VISIBILITY_PRESET default)
+set_target_properties(mpp_legacy_shared PROPERTIES CXX_VISIBILITY_PRESET default)
 
 if(RKPLATFORM)
     target_link_libraries(mpp_legacy_shared worker_vpu dl mpp_shared)