diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
index 72cfba4..7cf9904 100644
--- a/hw/ppc/spapr_pci.c
+++ b/hw/ppc/spapr_pci.c
@@ -2188,10 +2188,9 @@
     int i;
 
     for (i = 0; i < sphb->msi_devs_num; ++i) {
-        key = g_memdup(&sphb->msi_devs[i].key,
-                       sizeof(sphb->msi_devs[i].key));
-        value = g_memdup(&sphb->msi_devs[i].value,
-                         sizeof(sphb->msi_devs[i].value));
+        key = g_memdup2(&sphb->msi_devs[i].key, sizeof(sphb->msi_devs[i].key));
+        value = g_memdup2(&sphb->msi_devs[i].value,
+                          sizeof(sphb->msi_devs[i].value));
         g_hash_table_insert(sphb->msi, key, value);
     }
     g_free(sphb->msi_devs);