diff --git a/yamls/us/rev1/header.yaml b/yamls/us/rev1/header.yaml
index 3827d794..d7951fa1 100644
--- a/yamls/us/rev1/header.yaml
+++ b/yamls/us/rev1/header.yaml
@@ -60,7 +60,7 @@ options:
   # section_order: [".text", ".data", ".rodata", ".bss", "bin"]
   # auto_all_sections: [".data", ".rodata", ".bss"]
 
-  
+  asm_emit_size_directive: True # REC
 
   
   mips_abi_float_regs: o32