diff --git a/dtc.h b/dtc.h
index 789e0b1..0d5fa21 100644
--- a/dtc.h
+++ b/dtc.h
@@ -231,7 +231,8 @@ void add_child(struct node *parent, struct node *child);
 void delete_node_by_name(struct node *parent, char *name);
 void delete_node(struct node *node);
 void append_to_property(struct node *node,
-			char *name, const void *data, int len);
+			char *name, const void *data, int len,
+			enum markertype type);
 
 const char *get_unitname(struct node *node);
 struct property *get_property(struct node *node, const char *propname);
diff --git a/livetree.c b/livetree.c
index ae47e1a..21c2741 100644
--- a/livetree.c
+++ b/livetree.c
@@ -249,6 +249,7 @@ struct node * add_orphan_node(struct node *dt, struct node *new_node, char *ref)
 	char *name;
 
 	if (ref[0] == '/') {
+		d = data_add_marker(d, TYPE_STRING, ref);
 		d = data_append_data(d, ref, strlen(ref) + 1);
 
 		p = build_property("target-path", d, NULL);
@@ -350,17 +351,20 @@ void delete_node(struct node *node)
 }
 
 void append_to_property(struct node *node,
-				    char *name, const void *data, int len)
+			char *name, const void *data, int len,
+			enum markertype type)
 {
 	struct data d;
 	struct property *p;
 
 	p = get_property(node, name);
 	if (p) {
-		d = data_append_data(p->val, data, len);
+		d = data_add_marker(p->val, type, name);
+		d = data_append_data(d, data, len);
 		p->val = d;
 	} else {
-		d = data_append_data(empty_data, data, len);
+		d = data_add_marker(empty_data, type, name);
+		d = data_append_data(d, data, len);
 		p = build_property(name, d, NULL);
 		add_property(node, p);
 	}
@@ -858,8 +862,8 @@ static void generate_label_tree_internal(struct dt_info *dti,
 
 			/* insert it */
 			p = build_property(l->label,
-				data_copy_mem(node->fullpath,
-						strlen(node->fullpath) + 1),
+				data_copy_escape_string(node->fullpath,
+						strlen(node->fullpath)),
 				NULL);
 			add_property(an, p);
 		}
@@ -910,7 +914,7 @@ static void add_fixup_entry(struct dt_info *dti, struct node *fn,
 
 	xasprintf(&entry, "%s:%s:%u",
 			node->fullpath, prop->name, m->offset);
-	append_to_property(fn, m->ref, entry, strlen(entry) + 1);
+	append_to_property(fn, m->ref, entry, strlen(entry) + 1, TYPE_STRING);
 
 	free(entry);
 }
@@ -993,7 +997,7 @@ static void add_local_fixup_entry(struct dt_info *dti,
 	free(compp);
 
 	value_32 = cpu_to_fdt32(m->offset);
-	append_to_property(wn, prop->name, &value_32, sizeof(value_32));
+	append_to_property(wn, prop->name, &value_32, sizeof(value_32), TYPE_UINT32);
 }
 
 static void generate_local_fixups_tree_internal(struct dt_info *dti,