diff --git a/CMakeLists.txt b/CMakeLists.txt
index f6621498..1a7a0769 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -236,7 +236,7 @@ if (COMPILER_IDENTIFIER MATCHES "(linux|mac)")
         install(PROGRAMS ${OPENBLAS_FILES} DESTINATION lib)
     endif ()
     install(PROGRAMS Enhancement/suanPan.sh DESTINATION bin)
-    if (BUILD_MULTITHREAD)
+    if (BUILD_MULTITHREAD AND NOT USE_SYS_LIB)
         file(GLOB TBB_FILES Libs/${SP_EXTERNAL_LIB_PATH}/libtbb*)
         install(PROGRAMS ${TBB_FILES} DESTINATION lib)
     endif ()