diff --git a/src/codegen.cpp b/src/codegen.cpp
index 5852f3f0042ca0e1fa8a48b735f47fbb327ebbf0..b2cae32fa602accc3d89285df5bb257d809d7b66 100644
--- a/src/codegen.cpp
+++ b/src/codegen.cpp
@@ -10661,6 +10661,7 @@ CodeGen *create_child_codegen(CodeGen *parent_gen, Buf *root_src_path, OutType o
 
     CodeGen *child_gen = codegen_create(nullptr, root_src_path, parent_gen->zig_target, out_type,
         parent_gen->build_mode, parent_gen->zig_lib_dir, libc, get_global_cache_dir(), false, child_progress_node);
+    child_gen->target_details = parent_gen->target_details;
     child_gen->root_out_name = buf_create_from_str(name);
     child_gen->disable_gen_h = true;
     child_gen->want_stack_check = WantStackCheckDisabled;