diff --git a/kwin/src/kcm/breezydesktopeffectkcm.cpp b/kwin/src/kcm/breezydesktopeffectkcm.cpp
index eb8db1a..f9f18c6 100644
--- a/kwin/src/kcm/breezydesktopeffectkcm.cpp
+++ b/kwin/src/kcm/breezydesktopeffectkcm.cpp
@@ -883,7 +883,16 @@ void BreezyDesktopEffectConfig::updateNeckSaverVertical()
 void BreezyDesktopEffectConfig::updateDeadZoneThresholdDeg()
 {
     auto configJsonOpt = XRDriverIPC::instance().retrieveConfig();
-    double val = ui.DeadZoneThresholdDeg->value() / 10.0;
+
+    int raw = ui.DeadZoneThresholdDeg->value();
+    const int clampedRaw = std::clamp(raw, 0, 50);
+    if (raw != clampedRaw) {
+        QSignalBlocker b(ui.DeadZoneThresholdDeg);
+        ui.DeadZoneThresholdDeg->setValue(clampedRaw);
+        raw = clampedRaw;
+    }
+
+    double val = raw / 10.0;
     val = std::clamp(val, 0.0, 5.0);
 
     const double current = deadZoneThresholdDeg(configJsonOpt);
diff --git a/kwin/src/kcm/breezydesktopeffectkcm.ui b/kwin/src/kcm/breezydesktopeffectkcm.ui
index 875ab1e..32b76ed 100644
--- a/kwin/src/kcm/breezydesktopeffectkcm.ui
+++ b/kwin/src/kcm/breezydesktopeffectkcm.ui
@@ -666,13 +666,13 @@
               <double>1</double>
             </property>
             <property name="minimum">
-              <number>0</number>
+              <number>-5</number>
             </property>
             <property name="maximum">
-              <number>50</number>
+              <number>55</number>
             </property>
             <property name="tickStartOffset">
-              <double>0</double>
+              <double>5</double>
             </property>
             <property name="tickInterval">
               <double>10</double>