diff --git a/testsuite/grep/egrep-is-not-case-insensitive b/testsuite/grep/egrep-is-not-case-insensitive
index f12c54cd5..881607393 100644
--- a/testsuite/grep/egrep-is-not-case-insensitive
+++ b/testsuite/grep/egrep-is-not-case-insensitive
@@ -1 +1,2 @@
+# FEATURE: CONFIG_FEATURE_GREP_EGREP_ALIAS
 test x`echo foo | busybox egrep FOO` = x