diff --git a/src/local-elf.h b/src/local-elf.h
index 83ca253..ffc53a0 100644
--- a/src/local-elf.h
+++ b/src/local-elf.h
@@ -37,6 +37,8 @@
 
 #define ELF_TARG_VER	EV_CURRENT
 
+/* The following entries are sorted alphabetically. */
+
 #if defined(__alpha__)
 
 #define ELF_TARG_MACH	EM_ALPHA