diff --git a/include/common/standard.h b/include/common/standard.h
index be719f7..6827111 100644
--- a/include/common/standard.h
+++ b/include/common/standard.h
@@ -259,13 +259,20 @@
 extern const char *invalid_char(const char *name);
 
 /*
- * Checks <domainname> for invalid characters. Valid chars are [A-Za-z0-9_.-].
+ * Checks <name> for invalid characters. Valid chars are [A-Za-z0-9_.-].
  * If an invalid character is found, a pointer to it is returned.
  * If everything is fine, NULL is returned.
  */
 extern const char *invalid_domainchar(const char *name);
 
 /*
+ * Checks <name> for invalid characters. Valid chars are [A-Za-z_.-].
+ * If an invalid character is found, a pointer to it is returned.
+ * If everything is fine, NULL is returned.
+ */
+extern const char *invalid_prefix_char(const char *name);
+
+/*
  * converts <str> to a locally allocated struct sockaddr_storage *, and a
  * port range consisting in two integers. The low and high end are always set
  * even if the port is unspecified, in which case (0,0) is returned. The low
diff --git a/include/types/server.h b/include/types/server.h
index bfaa941..8d68dcb 100644
--- a/include/types/server.h
+++ b/include/types/server.h
@@ -274,6 +274,15 @@
 		int line;			/* line where the section appears */
 		struct eb32_node id;		/* place in the tree of used IDs */
 	} conf;					/* config information */
+	/* Template information used only for server objects which
+	 * serve as template filled at parsing time and used during
+	 * server allocations from server templates.
+	 */
+	struct {
+		char *prefix;
+		int nb_low;
+		int nb_high;
+	} tmpl_info;
 };
 
 /* Descriptor for a "server" keyword. The ->parse() function returns 0 in case of