diff --git a/dev_hidraw.c b/dev_hidraw.c
index 2cd49c3..26d7f8c 100644
--- a/dev_hidraw.c
+++ b/dev_hidraw.c
@@ -43,6 +43,12 @@ static int dev_hidraw_new_from_fd(int fd, dev_hidraw_t **const out_dev) {
     }
 
     res = ioctl((*out_dev)->fd, HIDIOCGRDESC, &(*out_dev)->rdesc);
+    if (res < 0) {
+        perror("Error getting Report Descriptor");
+        goto dev_hidraw_new_from_fd_err;
+    }
+
+    res = ioctl((*out_dev)->fd, HIDIOCGRDESCSIZE, &(*out_dev)->rdesc.size);
     if (res < 0) {
         perror("Error getting Report Descriptor");
         goto dev_hidraw_new_from_fd_err;