diff --git a/include/villas/signal.h b/include/villas/signal.h
index d7af0e2f7..93d054437 100644
--- a/include/villas/signal.h
+++ b/include/villas/signal.h
@@ -111,6 +111,7 @@ int signal_list_destroy(struct vlist *list);
 int signal_list_parse(struct vlist *list, json_t *cfg);
 int signal_list_generate(struct vlist *list, unsigned len, enum signal_type fmt);
 void signal_list_dump(const struct vlist *list, const union signal_data *data, int len);
+int signal_list_copy(struct vlist *dst, const struct vlist *src);
 
 enum signal_type signal_type_from_str(const char *str);
 
diff --git a/lib/signal.c b/lib/signal.c
index 47016714d..bc8c96060 100644
--- a/lib/signal.c
+++ b/lib/signal.c
@@ -307,6 +307,22 @@ void signal_list_dump(const struct vlist *list, const union signal_data *data, i
 	}
 }
 
+int signal_list_copy(struct vlist *dst, const struct vlist *src)
+{
+	assert(src->state == STATE_INITIALIZED);
+	assert(dst->state == STATE_INITIALIZED);
+
+	for (size_t i = 0; i < vlist_length(src); i++) {
+		struct signal *s = (struct signal *) vlist_at_safe(src, i);
+
+		signal_incref(s);
+
+		vlist_push(dst, s);
+	}
+
+	return 0;
+}
+
 /* Signal type */
 
 enum signal_type signal_type_from_str(const char *str)