diff --git a/test/mjsunit/timer.js b/test/mjsunit/timer.js
index bac474cfc1..0b035501e7 100644
--- a/test/mjsunit/timer.js
+++ b/test/mjsunit/timer.js
@@ -25,8 +25,15 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+// Flags: --allow-natives-syntax
+
 // Tests timer milliseconds granularity.
 
+// Don't run this test in gc stress mode. Time differences may be long
+// due to garbage collections.
+%SetFlags("--gc-interval=-1");
+%SetFlags("--nostress-compaction");
+
 (function run() {
   var start_test = Date.now();
   // Let the retry run for maximum 100ms to reduce flakiness.