diff --git a/include/flash.h b/include/flash.h
index 7afdf32..c71b1d9 100644
--- a/include/flash.h
+++ b/include/flash.h
@@ -211,6 +211,7 @@
 struct wp_bits;
 
 enum preparation_steps {
+	PREPARE_PROBE,
 	PREPARE_FULL,
 };