diff --git a/gtk/gtkplacessidebar.c b/gtk/gtkplacessidebar.c
index 108d3c7c92..259e546596 100644
--- a/gtk/gtkplacessidebar.c
+++ b/gtk/gtkplacessidebar.c
@@ -831,7 +831,7 @@ typedef struct {
 } BookmarkQueryClosure;
 
 static void
-on_bookmark_query_info_complete (GObject *source,
+on_bookmark_query_info_complete (GObject      *source,
                                  GAsyncResult *result,
                                  gpointer      data)
 {