diff --git a/TESTS/mbed_drivers/lp_timeout/main.cpp b/TESTS/mbed_drivers/lp_timeout/main.cpp
index ec8f36e60c..c1305cc271 100644
--- a/TESTS/mbed_drivers/lp_timeout/main.cpp
+++ b/TESTS/mbed_drivers/lp_timeout/main.cpp
@@ -74,9 +74,10 @@ Case cases[] = {
     Case("1 s delay during deepsleep (attach_us)", test_deepsleep<AttachUSTester<LowPowerTimeout>, 1000000, LONG_DELTA_US>,
          greentea_failure_handler),
 #endif
-
+#if !defined(__ARM_FM)  //FastModels not support time drifting test
     Case("Timing drift (attach)", test_drift<AttachTester<LowPowerTimeout> >),
     Case("Timing drift (attach_us)", test_drift<AttachUSTester<LowPowerTimeout> >),
+#endif
 };
 
 utest::v1::status_t greentea_test_setup(const size_t number_of_cases)