diff --git a/stand/i386/libi386/bootinfo32.c b/stand/i386/libi386/bootinfo32.c
index 37a797289f2..169d2dfb81f 100644
--- a/stand/i386/libi386/bootinfo32.c
+++ b/stand/i386/libi386/bootinfo32.c
@@ -174,7 +174,7 @@ bi_load32(char *args, int *howtop, int *bootdevp, vm_offset_t *bip, vm_offset_t
     kernelname = getenv("kernelname");
     i386_getdev(NULL, kernelname, &kernelpath);
     bi->bi_version = BOOTINFO_VERSION;
-    bi->bi_size = sizeof(bi);
+    bi->bi_size = sizeof(*bi);
     bi->bi_memsizes_valid = 1;
     bi->bi_basemem = bios_basemem / 1024;
     bi->bi_extmem = bios_extmem / 1024;