diff --git a/3rdparty/SoundTouch/CMakeLists.txt b/3rdparty/SoundTouch/CMakeLists.txt
index acc7d02714..75b6ca5ac9 100644
--- a/3rdparty/SoundTouch/CMakeLists.txt
+++ b/3rdparty/SoundTouch/CMakeLists.txt
@@ -11,11 +11,11 @@ add_library(soundtouch STATIC EXCLUDE_FROM_ALL
 	soundtouch/source/SoundTouch/TDStretch.cpp
 )
 
-target_include_directories(soundtouch PRIVATE
+target_include_directories(soundtouch SYSTEM PRIVATE
 	soundtouch/source/SoundTouch
 	soundtouch/include)
 
-target_include_directories(soundtouch INTERFACE
+target_include_directories(soundtouch SYSTEM INTERFACE
 	$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/soundtouch/include>
 	$<INSTALL_INTERFACE:/soundtouch/include>)