diff --git a/cmake/config-ix.cmake b/cmake/config-ix.cmake
index a1666783cfb..18977d9950f 100644
--- a/cmake/config-ix.cmake
+++ b/cmake/config-ix.cmake
@@ -148,7 +148,11 @@ if(NOT LLVM_USE_SANITIZER MATCHES "Memory.*")
       find_package(LibXml2)
       if (LIBXML2_FOUND)
         set(LLVM_LIBXML2_ENABLED 1)
-        include_directories(${LIBXML2_INCLUDE_DIR})
+        if ((CMAKE_OSX_SYSROOT) AND (EXISTS ${CMAKE_OSX_SYSROOT}/${LIBXML2_INCLUDE_DIR}))
+          include_directories(${CMAKE_OSX_SYSROOT}/${LIBXML2_INCLUDE_DIR})
+        else()
+          include_directories(${LIBXML2_INCLUDE_DIR})
+        endif()
         set(LIBXML2_LIBS "xml2")
       endif()
     endif()