diff --git a/lldb/cmake/caches/Apple-lldb-Xcode.cmake b/lldb/cmake/caches/Apple-lldb-Xcode.cmake
index 14d22550536d..34bb24eeae66 100644
--- a/lldb/cmake/caches/Apple-lldb-Xcode.cmake
+++ b/lldb/cmake/caches/Apple-lldb-Xcode.cmake
@@ -1,6 +1,6 @@
 include(${CMAKE_CURRENT_LIST_DIR}/Apple-lldb-base.cmake)
 
-set(CMAKE_GENERATOR Xcode)
+set(CMAKE_GENERATOR Xcode CACHE STRING "")
 set(CMAKE_OSX_DEPLOYMENT_TARGET 10.11 CACHE STRING "")
 set(CMAKE_XCODE_GENERATE_SCHEME ON CACHE BOOL "")