diff --git a/gui/tabs.cpp b/gui/tabs.cpp
index 053a0dad..db0b5b7c 100644
--- a/gui/tabs.cpp
+++ b/gui/tabs.cpp
@@ -59,6 +59,9 @@ void Tab :: tab_finish_init()
 		columns[i]->signal_clicked().connect(sigc::bind<unsigned int> (
 			sigc::mem_fun(*this, &Tab::on_column_clicked), i));
 	}
+
+	tab_set_size();
+	tab_runtime_changed();
 }