If 'tests' is disabled, then so should 'external-tests'
@@ -516,6 +516,7 @@ my @disable_cascades = (
"stdio" => [ "apps", "capieng" ],
"apps" => [ "tests" ],
+ "tests" => [ "external-tests" ],
"comp" => [ "zlib" ],
"ec" => [ "tls1_3" ],
sub { !$disabled{"unit-test"} } => [ "heartbeats" ],
