--- a/thunar/thunar-transfer-job.c	2019-05-18 00:19:01.000000000 +0200
+++ b/thunar/thunar-transfer-job.c	2019-06-20 12:18:52.167781533 +0200
@@ -835,16 +835,18 @@
 
       if (dest_info != NULL)
         {
-          if (!g_file_info_get_attribute_boolean (dest_info, G_FILE_ATTRIBUTE_ACCESS_CAN_WRITE))
+          if (g_file_info_get_attribute_boolean (dest_info, G_FILE_ATTRIBUTE_ACCESS_CAN_WRITE) != NULL)
             {
-              g_set_error (error, G_IO_ERROR, G_IO_ERROR_READ_ONLY,
-                           _("Error while copying to \"%s\": The destination is read-only"),
-                           dest_name);
+              if (!g_file_info_get_attribute_boolean (dest_info, G_FILE_ATTRIBUTE_ACCESS_CAN_WRITE))
+                {
+                  g_set_error (error, G_IO_ERROR, G_IO_ERROR_READ_ONLY,
+                               _("Error while copying to \"%s\": The destination is read-only"),
+                               dest_name);
 
-              succeed = FALSE;
-            }
-
-          g_object_unref (G_OBJECT (dest_info));
+                  succeed = FALSE;
+                }
+              }
+            g_object_unref (G_OBJECT (dest_info));
         }
     }