Fix selftest verbosity in test suites
diff --git a/tests/suites/test_suite_chacha20.function b/tests/suites/test_suite_chacha20.function
index bac1ef3..124e510 100644
--- a/tests/suites/test_suite_chacha20.function
+++ b/tests/suites/test_suite_chacha20.function
@@ -85,6 +85,6 @@
 /* BEGIN_CASE depends_on:MBEDTLS_SELF_TEST */
 void chacha20_self_test()
 {
-    TEST_ASSERT( mbedtls_chacha20_self_test( 0 ) == 0 );
+    TEST_ASSERT( mbedtls_chacha20_self_test( 1 ) == 0 );
 }
 /* END_CASE */