diff --git a/hw/core/qdev-properties-system.c b/hw/core/qdev-properties-system.c
index a91551a5ee..f2b6136d0a 100644
--- a/hw/core/qdev-properties-system.c
+++ b/hw/core/qdev-properties-system.c
@@ -882,7 +882,7 @@ static int print_pci_devfn(Object *obj, const Property *prop, char *dest,
 }
 
 const PropertyInfo qdev_prop_pci_devfn = {
-    .name  = "int32",
+    .name  = "str",
     .description = "Slot and optional function number, example: 06.0 or 06",
     .print = print_pci_devfn,
     .get   = qdev_propinfo_get_int32,