diff --git a/cgminer.c b/cgminer.c
index 10c92207..6676c8ce 100644
--- a/cgminer.c
+++ b/cgminer.c
@@ -3821,7 +3821,7 @@ static inline void thread_reportout(struct thr_info *thr)
 }
 
 static void hashmeter(int thr_id, struct timeval *diff,
-		      unsigned long long hashes_done)
+		      uint64_t hashes_done)
 {
 	struct timeval temp_tv_end, total_diff;
 	double secs;
@@ -3849,7 +3849,7 @@ static void hashmeter(int thr_id, struct timeval *diff,
 		double thread_rolling = 0.0;
 		int i;
 
-		applog(LOG_DEBUG, "[thread %d: %llu hashes, %.1f khash/sec]",
+		applog(LOG_DEBUG, "[thread %d: %"PRIu64" hashes, %.1f khash/sec]",
 			thr_id, hashes_done, hashes_done / 1000 / secs);
 
 		/* Rolling average for each thread and each device */