diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 65bd7f49c..314043650 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -83,12 +83,12 @@ bc_apply_compile_flags(LINPHONE_CXX_OBJECTS_SOURCE_FILES STRICT_OPTIONS_CPP STRI
 if(ENABLE_STATIC)
 	add_library(linphone-cxx-objects-static OBJECT ${LINPHONE_CXX_OBJECTS_PRIVATE_HEADER_FILES} ${LINPHONE_CXX_OBJECTS_SOURCE_FILES})
 	target_compile_definitions(linphone-cxx-objects-static PRIVATE ${LINPHONE_CXX_OBJECTS_DEFINITIONS})
-	target_include_directories(linphone-cxx-objects-static PRIVATE ${LINPHONE_CXX_OBJECTS_INCLUDE_DIRS} ${LINPHONE_INCLUDE_DIRS})
+	target_include_directories(linphone-cxx-objects-static SYSTEM PRIVATE ${LINPHONE_CXX_OBJECTS_INCLUDE_DIRS} ${LINPHONE_INCLUDE_DIRS})
 endif()
 
 if(ENABLE_SHARED)
 	add_library(linphone-cxx-objects OBJECT ${LINPHONE_CXX_OBJECTS_PRIVATE_HEADER_FILES} ${LINPHONE_CXX_OBJECTS_SOURCE_FILES})
 	target_compile_definitions(linphone-cxx-objects PRIVATE ${LINPHONE_CXX_OBJECTS_DEFINITIONS})
-	target_include_directories(linphone-cxx-objects PRIVATE ${LINPHONE_CXX_OBJECTS_INCLUDE_DIRS} ${LINPHONE_INCLUDE_DIRS})
+	target_include_directories(linphone-cxx-objects SYSTEM PRIVATE ${LINPHONE_CXX_OBJECTS_INCLUDE_DIRS} ${LINPHONE_INCLUDE_DIRS})
 	target_compile_options(linphone-cxx-objects PRIVATE "-fPIC")
 endif()