diff --git a/libc/bionic/pthread-timers.c b/libc/bionic/pthread-timers.c
index 7b9c99e..818b47d 100644
--- a/libc/bionic/pthread-timers.c
+++ b/libc/bionic/pthread-timers.c
@@ -485,19 +485,16 @@
             timer_gettime_internal(timer, ospec );
         }
 
-        /* compute next expiration time. note that if the
-         * new it_interval is 0, we should disarm the timer
-         */
+        /* compute next expiration time */
         expires = spec->it_value;
-        if (!timespec_is_zero(&expires)) {
-            clock_gettime( timer->clock, &now );
-            if (!(flags & TIMER_ABSTIME)) {
-                timespec_add(&expires, &now);
-            } else {
-                if (timespec_cmp(&expires, &now) < 0)
-                    expires = now;
-            }
+        clock_gettime( timer->clock, &now );
+        if (!(flags & TIMER_ABSTIME)) {
+            timespec_add(&expires, &now);
+        } else {
+            if (timespec_cmp(&expires, &now) < 0)
+                expires = now;
         }
+
         timer->expires = expires;
         timer->period  = spec->it_interval;
         thr_timer_unlock( timer );