diff --git a/default-configs/sparc64-softmmu.mak b/default-configs/sparc64-softmmu.mak
index d165132..14aab35 100644
--- a/default-configs/sparc64-softmmu.mak
+++ b/default-configs/sparc64-softmmu.mak
@@ -4,6 +4,7 @@
 CONFIG_M48T59=y
 CONFIG_PTIMER=y
 CONFIG_VGA_PCI=y
+CONFIG_SERIAL=y
 CONFIG_PARALLEL=y
 CONFIG_FDC=y
 CONFIG_IDE_QDEV=y