diff --git a/src/systemcmds/tests/hrt_test/hrt_test.cpp b/src/systemcmds/tests/hrt_test/hrt_test.cpp
index 2b087bcc68c0..38068d95f0be 100644
--- a/src/systemcmds/tests/hrt_test/hrt_test.cpp
+++ b/src/systemcmds/tests/hrt_test/hrt_test.cpp
@@ -71,13 +71,13 @@ int HRTTest::main()
 
 	hrt_abstime t = hrt_absolute_time();
 	px4_usleep(1000000);
-	hrt_abstime elt = hrt_elapsed_time(&t);
+	hrt_abstime elt = hrt_elapsed_time_atomic(&t);
 	PX4_INFO("Elapsed time %llu in 1 sec (usleep)\n", (unsigned long long)elt);
 	PX4_INFO("Start time %llu\n", (unsigned long long)t);
 
 	t = hrt_absolute_time();
 	px4_sleep(1);
-	elt = hrt_elapsed_time(&t);
+	elt = hrt_elapsed_time_atomic(&t);
 	PX4_INFO("Elapsed time %llu in 1 sec (sleep)\n", (unsigned long long)elt);
 	PX4_INFO("Start time %llu\n", (unsigned long long)t);
 
diff --git a/src/systemcmds/tests/test_microbench_hrt.cpp b/src/systemcmds/tests/test_microbench_hrt.cpp
index 8e3410f47360..4eefe1f63ae4 100644
--- a/src/systemcmds/tests/test_microbench_hrt.cpp
+++ b/src/systemcmds/tests/test_microbench_hrt.cpp
@@ -137,7 +137,7 @@ ut_declare_test_c(test_microbench_hrt, MicroBenchHRT)
 bool MicroBenchHRT::time_px4_hrt()
 {
 	PERF("hrt_absolute_time()", u_64_out = hrt_absolute_time(), 1000);
-	PERF("hrt_elapsed_time()", u_64_out = hrt_elapsed_time(&u_64), 1000);
+	PERF("hrt_elapsed_time()", u_64_out = hrt_elapsed_time_atomic(&u_64), 1000);
 
 	return true;
 }