diff --git a/common.h b/common.h
index 792dd36c..73b82f8e 100644
--- a/common.h
+++ b/common.h
@@ -78,9 +78,9 @@ typedef struct {
   char *logfile;
   char *errfile;
   char *configfile;
-  uint audio_backend_buffer_desired_length; // this will be the desired number of frames in the
+  uint32_t audio_backend_buffer_desired_length; // this will be the desired number of frames in the
                                             // audio backend buffer -- the DAC buffer for ALSA
-  uint audio_backend_latency_offset; // this will be the offset to compensate for any fixed latency
+  uint32_t audio_backend_latency_offset; // this will be the offset to compensate for any fixed latency
                                      // there might be in the audio
 } shairport_cfg;