diff --git a/hw/ipack/ipack.c b/hw/ipack/ipack.c
index ae20f36..c39dbb4 100644
--- a/hw/ipack/ipack.c
+++ b/hw/ipack/ipack.c
@@ -93,7 +93,7 @@
     .name = "ipack_device",
     .version_id = 1,
     .minimum_version_id = 1,
-    .fields = (VMStateField[]) {
+    .fields = (const VMStateField[]) {
         VMSTATE_INT32(slot, IPackDevice),
         VMSTATE_END_OF_LIST()
     }
diff --git a/hw/ipack/tpci200.c b/hw/ipack/tpci200.c
index 6b3edbf..88eef4b 100644
--- a/hw/ipack/tpci200.c
+++ b/hw/ipack/tpci200.c
@@ -619,7 +619,7 @@
     .name = "tpci200",
     .version_id = 1,
     .minimum_version_id = 1,
-    .fields = (VMStateField[]) {
+    .fields = (const VMStateField[]) {
         VMSTATE_PCI_DEVICE(dev, TPCI200State),
         VMSTATE_BOOL_ARRAY(big_endian, TPCI200State, 3),
         VMSTATE_UINT8_ARRAY(ctrl, TPCI200State, N_MODULES),