diff --git a/include/types/spoe.h b/include/types/spoe.h
index 392cc94..2632601 100644
--- a/include/types/spoe.h
+++ b/include/types/spoe.h
@@ -177,6 +177,13 @@
 	struct list list;  /* Use to chain SPOE placeholders */
 };
 
+/* Used during the config parsing, when SPOE agent section is parsed, to
+ * register some variable names. */
+struct spoe_var_placeholder {
+	char        *name;  /* The variable name */
+	struct list  list;  /* Use to chain SPOE var placeholders */
+};
+
 /* Describe a message that will be sent in a NOTIFY frame. A message has a name,
  * an argument list (see above) and it is linked to a specific event. */
 struct spoe_message {