diff --git a/include/types/checks.h b/include/types/checks.h
index 75e32b6..a414630 100644
--- a/include/types/checks.h
+++ b/include/types/checks.h
@@ -74,6 +74,12 @@
 };
 
 enum {
+	HANA_ONMARKEDDOWN_NONE	= 0,
+
+	HANA_ONMARKEDDOWN_SHUTDOWNSESSIONS,	/* Shutdown peer sessions */
+};
+
+enum {
 	HANA_OBS_NONE		= 0,
 
 	HANA_OBS_LAYER4,		/* Observe L4 - for example tcp */
diff --git a/include/types/server.h b/include/types/server.h
index cf0a0df..1a9d60d 100644
--- a/include/types/server.h
+++ b/include/types/server.h
@@ -125,6 +125,7 @@
 	int rise, fall;				/* time in iterations */
 	int consecutive_errors_limit;		/* number of consecutive errors that triggers an event */
 	short observe, onerror;			/* observing mode: one of HANA_OBS_*; what to do on error: on of ANA_ONERR_* */
+	short onmarkeddown;			/* what to do when marked down: on of HANA_ONMARKEDDOWN_* */
 	int inter, fastinter, downinter;	/* checks: time in milliseconds */
 	int slowstart;				/* slowstart time in seconds (ms in the conf) */
 	int result;				/* health-check result : SRV_CHK_* */