diff --git a/sys/arch/mips/include/bsd-aout.h b/sys/arch/mips/include/bsd-aout.h
new file mode 100644
index 000000000000..d1d0e1c1c892
--- /dev/null
+++ b/sys/arch/mips/include/bsd-aout.h
@@ -0,0 +1,33 @@
+/* bsd-aout.h
+
+   4.4bsd a.out format, for backwards compatibility...  */
+
+#ifndef __MACHINE_BSD_AOUT_H__
+#define __MACHINE_BSD_AOUT_H__
+#define BSD_OMAGIC  0407            /* old impure format */
+#define BSD_NMAGIC  0410            /* read-only text */
+#define BSD_ZMAGIC  0413            /* demand load format */
+
+struct bsd_aouthdr {
+#if BYTE_ORDER == BIG_ENDIAN
+  u_short a_mid;          /* machine ID */
+  u_short a_magic;        /* magic number */
+#else
+  u_short a_magic;        /* magic number */
+  u_short a_mid;          /* machine ID */
+#endif
+ 
+  u_long  a_text;         /* text segment size */
+  u_long  a_data;         /* initialized data size */
+  u_long  a_bss;          /* uninitialized data size */
+  u_long  a_syms;         /* symbol table size */
+  u_long  a_entry;        /* entry point */
+  u_long  a_trsize;       /* text relocation size */
+  u_long  a_drsize;       /* data relocation size */
+};
+
+#ifndef KERNEL
+#define _AOUT_INCLUDE_
+#include <nlist.h>
+#endif /* KERNEL */
+#endif /* __MACHINE_BSD_AOUT_H__ */
diff --git a/sys/arch/pmax/include/bsd-aout.h b/sys/arch/pmax/include/bsd-aout.h
new file mode 100644
index 000000000000..d1d0e1c1c892
--- /dev/null
+++ b/sys/arch/pmax/include/bsd-aout.h
@@ -0,0 +1,33 @@
+/* bsd-aout.h
+
+   4.4bsd a.out format, for backwards compatibility...  */
+
+#ifndef __MACHINE_BSD_AOUT_H__
+#define __MACHINE_BSD_AOUT_H__
+#define BSD_OMAGIC  0407            /* old impure format */
+#define BSD_NMAGIC  0410            /* read-only text */
+#define BSD_ZMAGIC  0413            /* demand load format */
+
+struct bsd_aouthdr {
+#if BYTE_ORDER == BIG_ENDIAN
+  u_short a_mid;          /* machine ID */
+  u_short a_magic;        /* magic number */
+#else
+  u_short a_magic;        /* magic number */
+  u_short a_mid;          /* machine ID */
+#endif
+ 
+  u_long  a_text;         /* text segment size */
+  u_long  a_data;         /* initialized data size */
+  u_long  a_bss;          /* uninitialized data size */
+  u_long  a_syms;         /* symbol table size */
+  u_long  a_entry;        /* entry point */
+  u_long  a_trsize;       /* text relocation size */
+  u_long  a_drsize;       /* data relocation size */
+};
+
+#ifndef KERNEL
+#define _AOUT_INCLUDE_
+#include <nlist.h>
+#endif /* KERNEL */
+#endif /* __MACHINE_BSD_AOUT_H__ */