diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
index 128a7fe45a1e..a29d9e125b00 100755
--- a/tools/testing/ktest/ktest.pl
+++ b/tools/testing/ktest/ktest.pl
@@ -765,6 +765,7 @@ sub set_value {
     if ($lvalue =~ /^(TEST|BISECT|CONFIG_BISECT)_TYPE(\[.*\])?$/ &&
 	$prvalue !~ /^(config_|)bisect$/ &&
 	$prvalue !~ /^build$/ &&
+	$prvalue !~ /^make_warnings_file$/ &&
 	$buildonly) {
 
 	# Note if a test is something other than build, then we