diff --git a/av1/common/timing.h b/av1/common/timing.h
index d31f4b7..2562951 100644
--- a/av1/common/timing.h
+++ b/av1/common/timing.h
@@ -35,8 +35,8 @@
   int decoder_model_param_present_flag;
   int64_t bitrate;
   int64_t buffer_size;
-  int decoder_buffer_delay;
-  int encoder_buffer_delay;
+  uint32_t decoder_buffer_delay;
+  uint32_t encoder_buffer_delay;
   int low_delay_mode_flag;
   int display_model_param_present_flag;
   int initial_display_delay;