diff --git a/TESTS/events/timing/main.cpp b/TESTS/events/timing/main.cpp
index d568b0f5b6..74ec8f949f 100644
--- a/TESTS/events/timing/main.cpp
+++ b/TESTS/events/timing/main.cpp
@@ -107,7 +107,10 @@ void semaphore_timing_test() {
         equeue_sema_wait(&sema, delay);
         int taken = timer.read_us() - start;
 
-        printf("delay %dms => error %dus\r\n", delay, abs(1000*delay - taken));
+        if (taken < (delay * 1000 - 5000) || taken > (delay * 1000 + 5000)) {
+            printf("delay %dms => error %dus\r\n", delay, abs(1000 * delay - taken));
+        }
+
         TEST_ASSERT_INT_WITHIN(5000, taken, delay * 1000);
 
         led = !led;