diff --git a/src/Tools/tim_tool/ui/tab/main-tab.slint b/src/Tools/tim_tool/ui/tab/main-tab.slint
index 6bff7047..2889b2fc 100644
--- a/src/Tools/tim_tool/ui/tab/main-tab.slint
+++ b/src/Tools/tim_tool/ui/tab/main-tab.slint
@@ -139,7 +139,7 @@ export component MainTab inherits Rectangle {
                 }
                 slider := Slider {
                     minimum: 100.0;
-                    maximum: 400.0;
+                    maximum: 800.0;
                     step:    1.0;
                     value:   100.0;