diff --git a/testsuite/dd/dd-count-bytes b/testsuite/dd/dd-count-bytes
index 0730cba5e..ae1b6c50a 100644
--- a/testsuite/dd/dd-count-bytes
+++ b/testsuite/dd/dd-count-bytes
@@ -1 +1,3 @@
+# FEATURE: CONFIG_FEATURE_DD_IBS_OBS
+
 test "$(echo I WANT | busybox dd count=3 iflag=count_bytes 2>/dev/null)" = "I W"