diff --git a/grub-core/term/ns8250-spcr.c b/grub-core/term/ns8250-spcr.c
index 4efaaf768..428b2d59a 100644
--- a/grub-core/term/ns8250-spcr.c
+++ b/grub-core/term/ns8250-spcr.c
@@ -76,6 +76,11 @@ grub_ns8250_spcr_init (void)
         config.speed = 115200;
         break;
     };
+
+  /* If base address is 0 it means redirection is disabled. */
+  if (spcr->base_addr.addr == 0)
+    return NULL;
+
   switch (spcr->base_addr.space_id)
     {
       case GRUB_ACPI_GENADDR_MEM_SPACE: