diff --git a/sys/kern/imgact_elf.c b/sys/kern/imgact_elf.c
--- a/sys/kern/imgact_elf.c
+++ b/sys/kern/imgact_elf.c
@@ -1333,7 +1333,6 @@
 	imgp->reloc_base = addr;
 	imgp->proc->p_osrel = osrel;
 	imgp->proc->p_fctl0 = fctl0;
-	imgp->proc->p_elf_machine = hdr->e_machine;
 	imgp->proc->p_elf_flags = hdr->e_flags;
 
 ret:
@@ -1806,8 +1805,10 @@
 	Elf_Phdr *phdr;
 	Elf_Shdr *shdr;
 	struct phdr_closure phc;
+	Elf_Brandinfo *bi;
 
 	ehdr = (Elf_Ehdr *)hdr;
+	bi = td->td_proc->p_elf_brandinfo;
 
 	ehdr->e_ident[EI_MAG0] = ELFMAG0;
 	ehdr->e_ident[EI_MAG1] = ELFMAG1;
@@ -1820,7 +1821,7 @@
 	ehdr->e_ident[EI_ABIVERSION] = 0;
 	ehdr->e_ident[EI_PAD] = 0;
 	ehdr->e_type = ET_CORE;
-	ehdr->e_machine = td->td_proc->p_elf_machine;
+	ehdr->e_machine = bi->machine;
 	ehdr->e_version = EV_CURRENT;
 	ehdr->e_entry = 0;
 	ehdr->e_phoff = sizeof(Elf_Ehdr);
diff --git a/sys/kern/kern_thread.c b/sys/kern/kern_thread.c
--- a/sys/kern/kern_thread.c
+++ b/sys/kern/kern_thread.c
@@ -120,7 +120,7 @@
     "struct proc KBI p_filemon");
 _Static_assert(offsetof(struct proc, p_comm) == 0x27c,
     "struct proc KBI p_comm");
-_Static_assert(offsetof(struct proc, p_emuldata) == 0x30c,
+_Static_assert(offsetof(struct proc, p_emuldata) == 0x308,
     "struct proc KBI p_emuldata");
 #endif
 
diff --git a/sys/sys/proc.h b/sys/sys/proc.h
--- a/sys/sys/proc.h
+++ b/sys/sys/proc.h
@@ -700,7 +700,6 @@
 	pid_t		p_reapsubtree;	/* (e) Pid of the direct child of the
 					       reaper which spawned
 					       our subtree. */
-	uint16_t	p_elf_machine;	/* (x) ELF machine type */
 	uint64_t	p_elf_flags;	/* (x) ELF flags */
 	void		*p_elf_brandinfo; /* (x) Elf_Brandinfo, NULL for
 						 non ELF binaries. */