diff --git a/lib/srfi/18/threads.c b/lib/srfi/18/threads.c
index 4cee606b..23d97a97 100644
--- a/lib/srfi/18/threads.c
+++ b/lib/srfi/18/threads.c
@@ -546,7 +546,7 @@ sexp sexp_scheduler (sexp ctx, sexp self, sexp_sint_t n, sexp root_thread) {
     if ((sexp_context_timeval(res).tv_sec == 0)
         && (sexp_context_timeval(res).tv_usec == 0)) {
       /* no timeout, wait for default 10ms */
-      usecs = 10*1000   *100;   /* 1s */
+      usecs = 10*1000;
     } else {
       /* wait until the next timeout */
       gettimeofday(&tval, NULL);