diff --git a/src/drivers/intel/fsp2_0/memory_init.c b/src/drivers/intel/fsp2_0/memory_init.c
index 740b9c6..dcb44f6 100644
--- a/src/drivers/intel/fsp2_0/memory_init.c
+++ b/src/drivers/intel/fsp2_0/memory_init.c
@@ -86,7 +86,7 @@
 	/* MRC cache found */
 	arch_upd->NvsBufferPtr = (uintptr_t)data;
 
-	printk(BIOS_SPEW, "MRC cache found, size %zx\n", mrc_size);
+	printk(BIOS_SPEW, "MRC cache found, size %zu bytes\n", mrc_size);
 }
 
 static enum cb_err check_region_overlap(const struct memranges *ranges,