1 files changed, 3 insertions, 1 deletions

diff --git a/tools/idevicebackup4.c b/tools/idevicebackup4.c
index c2e067d..1a9a9ea 100644
--- a/tools/idevicebackup4.c
+++ b/tools/idevicebackup4.c
@@ -289,7 +289,9 @@ static plist_t mobilebackup_factory_info_plist_new()
         plist_dict_insert_item(ret, "Last Backup Date", plist_new_date(tv.tv_sec, tv.tv_usec));
 
         value_node = plist_dict_get_item(root_node, "PhoneNumber");
-        plist_dict_insert_item(ret, "Phone Number", plist_copy(value_node));
+        if (value_node && (plist_get_node_type(value_node) == PLIST_STRING)) {
+                plist_dict_insert_item(ret, "Phone Number", plist_copy(value_node));
+        }
 
         value_node = plist_dict_get_item(root_node, "ProductType");
         plist_dict_insert_item(ret, "Product Type", plist_copy(value_node));