diff --git a/qt/aqt/profiles.py b/qt/aqt/profiles.py
index 03f4280cb..ba605f401 100644
--- a/qt/aqt/profiles.py
+++ b/qt/aqt/profiles.py
@@ -485,7 +485,8 @@ please see:
     ######################################################################
 
     def uiScale(self) -> float:
-        return self.meta.get("uiScale", 1.0)
+        scale = self.meta.get("uiScale", 1.0)
+        return max(scale, 1)
 
     def setUiScale(self, scale: float) -> None:
         self.meta["uiScale"] = scale
diff --git a/qt/designer/preferences.ui b/qt/designer/preferences.ui
index 3e7c9fca4..2e87ce297 100644
--- a/qt/designer/preferences.ui
+++ b/qt/designer/preferences.ui
@@ -246,7 +246,7 @@
             <string>%</string>
            </property>
            <property name="minimum">
-            <number>50</number>
+            <number>100</number>
            </property>
            <property name="maximum">
             <number>200</number>