diff --git a/src/Tools/tim_tool/ui/app-window.slint b/src/Tools/tim_tool/ui/app-window.slint
index 1b1b7399..2a4cfb17 100644
--- a/src/Tools/tim_tool/ui/app-window.slint
+++ b/src/Tools/tim_tool/ui/app-window.slint
@@ -29,6 +29,9 @@ component VRAMArea inherits Rectangle {
 }
 
 export component MainWindow inherits Window {
+    min-width: 1024px;
+    min-height: 640px;
+
     VRAMArea {
         x: 0;
         y: 0;