diff --git a/src/m/sh3.h b/src/m/sh3.h
index 134eb16b9b8..bb8e2937b01 100644
--- a/src/m/sh3.h
+++ b/src/m/sh3.h
@@ -5,3 +5,6 @@
 #endif
 
 #define NO_ARG_ARRAY
+
+/* arch-tag: 1b01b84f-f044-4afa-aa4b-caa54ec38966
+   (do not change this comment) */