Index: boot/arch/riscv64/src/main.c
===================================================================
--- boot/arch/riscv64/src/main.c	(revision 53ad43cce05b0004bca31a7c5d6822fc33686cf1)
+++ boot/arch/riscv64/src/main.c	(revision 948222e45b757067cc0c8605fb69b04c5ba6f5a8)
@@ -64,5 +64,5 @@
 	bootinfo.memmap.zones[0].size = PHYSMEM_SIZE;
 
-	printf("\nMemory statistics (total %lu MB, starting at %p)\n\n",
+	printf("\nMemory statistics (total %llu MB, starting at %p)\n\n",
 	    bootinfo.memmap.total >> 20, (void *) bootinfo.physmem_start);
 	printf(" %p: boot info structure\n", &bootinfo);