diff --git a/src/plugins/multimedia/ffmpeg/CMakeLists.txt b/src/plugins/multimedia/ffmpeg/CMakeLists.txt
index 77c459a..af5229e 100644
--- a/src/plugins/multimedia/ffmpeg/CMakeLists.txt
+++ b/src/plugins/multimedia/ffmpeg/CMakeLists.txt
@@ -85,11 +85,9 @@ qt_internal_add_module(FFmpegMediaPluginImplPrivate
         # compiled with different compiler options:
         # not used because `__NO_INLINE__' not defined [-Werror=invalid-pch]
         playbackengine/qffmpegaudioframeconverter.cpp
-
-    SYSTEM_INCLUDE_DIRECTORIES
-        ../../../3rdparty/signalsmith-stretch/
-    ATTRIBUTION_FILE_DIR_PATHS
-        ../../../3rdparty/signalsmith-stretch
+
+    SYSTEM_INCLUDE_DIRECTORIES
+        "${VCPKG_INSTALLED_DIR}/${VCPKG_TARGET_TRIPLET}/include/signalsmith-stretch"
 )
 
 if (LINUX OR ANDROID)