diff --git a/libowlps/libowlps.c b/libowlps/libowlps.c
index 36e18b9..bde390c 100644
--- a/libowlps/libowlps.c
+++ b/libowlps/libowlps.c
@@ -230,10 +230,6 @@ owl_timestamp owl_time_elapsed(const owl_timestamp d1,
   owl_timestamp elapsed ;
   elapsed.tv_sec = abs(d1.tv_sec - d2.tv_sec) ;
   elapsed.tv_nsec = abs(d1.tv_nsec - d2.tv_nsec) ;
-#ifdef DEBUG
-  fprintf(stderr, "time_elapsed(): %"PRIu64"ms\n",
-          owl_timestamp_to_ms(elapsed)) ;
-#endif
   return elapsed ;
 }