1 files changed, 1 insertions, 1 deletions
diff --git a/src/tree.h b/src/tree.h
index 6c4731a..973ad07 100644
--- a/src/tree.h
+++ b/src/tree.h
@@ -78,7 +78,7 @@ mq_tree_remove_allocated(MqTree *node);
 	((node) ? (((MqTree *) (node))->first_child) : NULL)
 
 MqTree *
-mq_tree_seek(MqTree *node, gint offset);
+mq_tree_seek(MqTree *node, gint offset) G_GNUC_PURE;
 
 void
 mq_tree_foreach(MqTree *node, gboolean (*cb)(MqTree *node, gpointer user_data),