diff --git a/samples/mpp_decode_demo/CMakeLists.txt b/samples/mpp_decode_demo/CMakeLists.txt
index cac2866..6897e74 100644
--- a/samples/mpp_decode_demo/CMakeLists.txt
+++ b/samples/mpp_decode_demo/CMakeLists.txt
@@ -37,6 +37,7 @@ else()
     target_include_directories(mpp_decode_demo PRIVATE
         ${MPP_SRC_ROOT}/inc
         ${MPP_SRC_ROOT}/mpp
+        ${MPP_SRC_ROOT}/mpp/inc
         ${MPP_SRC_ROOT}/mpp/base/inc
         ${MPP_SRC_ROOT}/osal/inc
         ${MPP_SRC_ROOT}/osal