--- a/src/stress.c
+++ b/src/stress.c
@@ -263,6 +263,7 @@ main (int argc, char **argv)
 
       /* Calculate the backoff value so we get good fork throughput.  */
       backoff = do_backoff * forks;
+      struct timespec b = {backoff / 1000000, (backoff % 1000000) * 1000};
       dbg (stdout, "using backoff sleep of %llius\n", backoff);
 
       /* If we are supposed to respect a timeout, calculate it.  */
@@ -297,7 +298,7 @@ main (int argc, char **argv)
             {
             case 0:            /* child */
               alarm (timeout);
-              usleep (backoff);
+              nanosleep(&b, NULL);
               if (do_dryrun)
                 exit (0);
               exit (hogcpu ());
@@ -318,7 +319,7 @@ main (int argc, char **argv)
             {
             case 0:            /* child */
               alarm (timeout);
-              usleep (backoff);
+              nanosleep(&b,&b);
               if (do_dryrun)
                 exit (0);
               exit (hogio ());
@@ -338,7 +339,7 @@ main (int argc, char **argv)
             {
             case 0:            /* child */
               alarm (timeout);
-              usleep (backoff);
+              nanosleep(&b, &b);
               if (do_dryrun)
                 exit (0);
               exit (hogvm
@@ -359,7 +360,7 @@ main (int argc, char **argv)
             {
             case 0:            /* child */
               alarm (timeout);
-              usleep (backoff);
+              nanosleep(&b, &b);
               if (do_dryrun)
                 exit (0);
               exit (hoghdd (do_hdd_bytes));