diff --git a/clapper_src/player.js b/clapper_src/player.js
index db7a53e7..776ed62c 100644
--- a/clapper_src/player.js
+++ b/clapper_src/player.js
@@ -322,7 +322,7 @@ class ClapperPlayer extends PlayerBase
 
         let clapperWidget = this.widget.get_ancestor(Gtk.Grid);
         if(!clapperWidget.fullscreenMode) {
-            let size = window.get_size();
+            let size = window.get_default_size();
             if(size[0] > 0 && size[1] > 0)
                 clapperWidget._saveWindowSize(size);
         }
diff --git a/clapper_src/widget.js b/clapper_src/widget.js
index 500f9c7b..707174a1 100644
--- a/clapper_src/widget.js
+++ b/clapper_src/widget.js
@@ -135,7 +135,7 @@ var Widget = GObject.registerClass({
             return;
 
         let root = this.get_root();
-        let size = root.get_size();
+        let size = root.get_default_size();
 
         this._saveWindowSize(size);
 
@@ -160,7 +160,7 @@ var Widget = GObject.registerClass({
             ? this.floatSize
             : this.windowSize;
 
-        root.resize(resize[0], resize[1]);
+        root.set_default_size(resize[0], resize[1]);
         debug(`resized window: ${resize[0]}x${resize[1]}`);
 
         this.revealerBottom.showChild(false);