diff --git a/clapper_src/misc.js b/clapper_src/misc.js
index 2c55946b..05c5d1eb 100644
--- a/clapper_src/misc.js
+++ b/clapper_src/misc.js
@@ -14,7 +14,6 @@ var settings = new Gio.Settings({
 });
 
 var maxVolume = 1.5;
-var isOldGtk = (Gtk.MINOR_VERSION === 99 && Gtk.MICRO_VERSION <= 4);
 
 let inhibitCookie;
 
diff --git a/clapper_src/player.js b/clapper_src/player.js
index e0af0fe4..1a49eaa8 100644
--- a/clapper_src/player.js
+++ b/clapper_src/player.js
@@ -372,9 +372,7 @@ class ClapperPlayer extends PlayerBase
 
         const clapperWidget = this.widget.get_ancestor(Gtk.Grid);
         if(!clapperWidget.fullscreenMode) {
-            const size = (Misc.isOldGtk)
-                ? window.get_size()
-                : window.get_default_size();
+            const 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 c0dfd8e2..f0d5589c 100644
--- a/clapper_src/widget.js
+++ b/clapper_src/widget.js
@@ -136,9 +136,7 @@ class ClapperWidget extends Gtk.Grid
             return;
 
         const root = this.get_root();
-        const size = (Misc.isOldGtk)
-            ? root.get_size()
-            : root.get_default_size();
+        const size = root.get_default_size();
 
         this._saveWindowSize(size);
 
@@ -163,11 +161,7 @@ class ClapperWidget extends Gtk.Grid
             ? this.floatSize
             : this.windowSize;
 
-        if(Misc.isOldGtk)
-            root.resize(resize[0], resize[1]);
-        else
-            root.set_default_size(resize[0], resize[1]);
-
+        root.set_default_size(resize[0], resize[1]);
         debug(`resized window: ${resize[0]}x${resize[1]}`);
 
         this.revealerBottom.showChild(false);