diff --git a/hw/acpi/core.c b/hw/acpi/core.c
index 1e004d0078..3e811bf03c 100644
--- a/hw/acpi/core.c
+++ b/hw/acpi/core.c
@@ -345,8 +345,8 @@ int acpi_get_slic_oem(AcpiSlicOem *oem)
         struct acpi_table_header *hdr = (void *)(u - sizeof(hdr->_length));
 
         if (memcmp(hdr->sig, "SLIC", 4) == 0) {
-            oem->id = hdr->oem_id;
-            oem->table_id = hdr->oem_table_id;
+            oem->id = g_strndup(hdr->oem_id, 6);
+            oem->table_id = g_strndup(hdr->oem_table_id, 8);
             return 0;
         }
     }
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index a99c6e4fe3..570f82997b 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -2721,6 +2721,8 @@ void acpi_build(AcpiBuildTables *tables, MachineState *machine)
 
     /* Cleanup memory that's no longer used. */
     g_array_free(table_offsets, true);
+    g_free(slic_oem.id);
+    g_free(slic_oem.table_id);
 }
 
 static void acpi_ram_update(MemoryRegion *mr, GArray *data)