diff --git a/rtgui/options.cc b/rtgui/options.cc
index 45f4896d6..49c213ebd 100644
--- a/rtgui/options.cc
+++ b/rtgui/options.cc
@@ -511,8 +511,7 @@ void Options::setDefaults ()
 #endif
 
     // 0 = SET mode, 1 = ADD mode
-    baBehav.clear();
-    baBehav.resize(ADDSET_PARAM_NUM, 0);
+    baBehav.assign(ADDSET_PARAM_NUM, 0);
 
     rtSettings.darkFramesPath = "";
     rtSettings.flatFieldsPath = "";
diff --git a/rtgui/preferences.cc b/rtgui/preferences.cc
index b228c4dc7..d6907a933 100644
--- a/rtgui/preferences.cc
+++ b/rtgui/preferences.cc
@@ -2563,8 +2563,7 @@ bool Preferences::splashClosed (GdkEventAny* event)
 
 void Preferences::behAddSetAllPressed (bool add)
 {
-    moptions.baBehav.clear();
-    moptions.baBehav.resize(ADDSET_PARAM_NUM, add);
+    moptions.baBehav.assign(ADDSET_PARAM_NUM, add);
     for (Gtk::TreeIter sections = behModel->children().begin(); sections != behModel->children().end(); ++sections) {
         for (Gtk::TreeIter adjs = sections->children().begin(); adjs != sections->children().end(); ++adjs) {
             adjs->set_value(behavColumns.badd, add);