diff --git a/v3/pkg/application/webview_window_linux.go b/v3/pkg/application/webview_window_linux.go
index 264e93ca..04d4b9f6 100644
--- a/v3/pkg/application/webview_window_linux.go
+++ b/v3/pkg/application/webview_window_linux.go
@@ -326,21 +326,26 @@ func (w *linuxWebviewWindow) disableSizeConstraints() {
 }
 
 func (w *linuxWebviewWindow) unfullscreen() {
-	C.gtk_window_unfullscreen((*C.GtkWindow)(w.window))
-	w.unmaximise()
+	fmt.Println("unfullscreen")
+	globalApplication.dispatchOnMainThread(func() {
+		C.gtk_window_unfullscreen((*C.GtkWindow)(w.window))
+		w.unmaximise()
+	})
 }
 
 func (w *linuxWebviewWindow) fullscreen() {
 	w.maximise()
 	w.lastWidth, w.lastHeight = w.size()
-	x, y, width, height, scale := w.getCurrentMonitorGeometry()
-	if x == -1 && y == -1 && width == -1 && height == -1 {
-		return
-	}
-	w.setMinMaxSize(0, 0, width*scale, height*scale)
-	w.setSize(width*scale, height*scale)
-	C.gtk_window_fullscreen((*C.GtkWindow)(w.window))
-	w.setPosition(0, 0)
+	globalApplication.dispatchOnMainThread(func() {
+		x, y, width, height, scale := w.getCurrentMonitorGeometry()
+		if x == -1 && y == -1 && width == -1 && height == -1 {
+			return
+		}
+		w.setMinMaxSize(0, 0, width*scale, height*scale)
+		w.setSize(width*scale, height*scale)
+		C.gtk_window_fullscreen((*C.GtkWindow)(w.window))
+		w.setPosition(0, 0)
+	})
 }
 
 func (w *linuxWebviewWindow) unminimise() {