diff --git a/lldb/cmake/modules/AddLLDB.cmake b/lldb/cmake/modules/AddLLDB.cmake
index ecf0b66a41a3..4ed5c647c5d2 100644
--- a/lldb/cmake/modules/AddLLDB.cmake
+++ b/lldb/cmake/modules/AddLLDB.cmake
@@ -336,3 +336,17 @@ function(lldb_find_system_debugserver path)
     endif()
   endif()
 endfunction()
+
+# Removes all module flags from the current CMAKE_CXX_FLAGS. Used for
+# the Objective-C++ code in lldb which we don't want to build with modules.
+# Reasons for this are that modules with Objective-C++ would require that
+# all LLVM/Clang modules are Objective-C++ compatible (which they are likely
+# not) and we would have rebuild a second set of modules just for the few
+# Objective-C++ files in lldb (which slows down the build process).
+macro(remove_module_flags)
+  string(REGEX REPLACE "-fmodules-cache-path=[^ ]+" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+  string(REGEX REPLACE "-fmodules-local-submodule-visibility" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+  string(REGEX REPLACE "-fmodules" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+  string(REGEX REPLACE "-gmodules" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+  string(REGEX REPLACE "-fcxx-modules" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+endmacro()
diff --git a/lldb/source/Host/CMakeLists.txt b/lldb/source/Host/CMakeLists.txt
index a15c34fdbb6b..ac8655f3dd88 100644
--- a/lldb/source/Host/CMakeLists.txt
+++ b/lldb/source/Host/CMakeLists.txt
@@ -3,20 +3,6 @@ macro(add_host_subdirectory group)
   source_group(${group} FILES ${ARGN})
 endmacro()
 
-# Removes all module flags from the current CMAKE_CXX_FLAGS. Used for
-# the Objective-C++ code in lldb which we don't want to build with modules.
-# Reasons for this are that modules with Objective-C++ would require that
-# all LLVM/Clang modules are Objective-C++ compatible (which they are likely
-# not) and we would have rebuild a second set of modules just for the few
-# Objective-C++ files in lldb (which slows down the build process).
-macro(remove_module_flags)
-  string(REGEX REPLACE "-fmodules-cache-path=[^ ]+" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
-  string(REGEX REPLACE "-fmodules-local-submodule-visibility" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
-  string(REGEX REPLACE "-fmodules" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
-  string(REGEX REPLACE "-gmodules" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
-  string(REGEX REPLACE "-fcxx-modules" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
-endmacro()
-
 add_host_subdirectory(common
   common/FileAction.cpp
   common/FileCache.cpp