diff --git a/libunwind/CMakeLists.txt b/libunwind/CMakeLists.txt
index 3c6a2e677218..3a132be54967 100644
--- a/libunwind/CMakeLists.txt
+++ b/libunwind/CMakeLists.txt
@@ -329,7 +329,8 @@ find_path(
   PATHS ${LLVM_MAIN_SRC_DIR}/projects/libcxx/include
         ${LLVM_MAIN_SRC_DIR}/runtimes/libcxx/include
   NO_DEFAULT_PATH
-)
+  NO_CMAKE_FIND_ROOT_PATH
+  )
 if ((NOT LIBUNWIND_STANDALONE_BUILD OR HAVE_LIBCXX) AND
     IS_DIRECTORY "${LIBUNWIND_LIBCXX_INCLUDES_INTERNAL}")
   set(LIBUNWIND_CXX_INCLUDE_PATHS_DEFAULT "${LIBUNWIND_LIBCXX_INCLUDES_INTERNAL}")