diff --git a/include/types/server.h b/include/types/server.h
index 781a889..bfaa941 100644
--- a/include/types/server.h
+++ b/include/types/server.h
@@ -241,6 +241,7 @@
 	int tcp_ut;                             /* for TCP, user timeout */
 
 	int do_check;                           /* temporary variable used during parsing to denote if health checks must be enabled */
+	int do_agent;                           /* temporary variable used during parsing to denote if an auxiliary agent check must be enabled */
 	struct check check;                     /* health-check specific configuration */
 	struct check agent;                     /* agent specific configuration */