diff --git a/test/fuzzers/packet_buffer_fuzzer.cc b/test/fuzzers/packet_buffer_fuzzer.cc
index b500f92b40..8ad21e1417 100644
--- a/test/fuzzers/packet_buffer_fuzzer.cc
+++ b/test/fuzzers/packet_buffer_fuzzer.cc
@@ -34,11 +34,18 @@ void FuzzOneInput(const uint8_t* data, size_t size) {
     memcpy(&video_header_backup, &packet.video_header,
            sizeof(packet.video_header));
 
+    uint8_t generic_descriptor_backup[sizeof(packet.generic_descriptor)];
+    memcpy(&generic_descriptor_backup, &packet.generic_descriptor,
+           sizeof(packet.generic_descriptor));
+
     helper.CopyTo(&packet);
 
     memcpy(&packet.video_header, &video_header_backup,
            sizeof(packet.video_header));
 
+    memcpy(&packet.generic_descriptor, &generic_descriptor_backup,
+           sizeof(packet.generic_descriptor));
+
     // The packet buffer owns the payload of the packet.
     uint8_t payload_size;
     helper.CopyTo(&payload_size);