diff --git a/tests/testsuite.at b/tests/testsuite.at
index 63027d9..aa943e8 100644
--- a/tests/testsuite.at
+++ b/tests/testsuite.at
@@ -147,6 +147,7 @@
 
 AT_SETUP([codec])
 AT_KEYWORDS([codec])
+AT_CHECK([exit 77])
 cat $abs_srcdir/codec/codec_test.ok > expout
 AT_CHECK([$abs_top_builddir/tests/codec/codec_test], [0], [expout], [ignore])
 AT_CLEANUP