diff --git a/ugs-core/src/com/willwinder/universalgcodesender/uielements/panels/ConnectionSettingsPanel.java b/ugs-core/src/com/willwinder/universalgcodesender/uielements/panels/ConnectionSettingsPanel.java
index a4dfbf5f50..79349cdf16 100644
--- a/ugs-core/src/com/willwinder/universalgcodesender/uielements/panels/ConnectionSettingsPanel.java
+++ b/ugs-core/src/com/willwinder/universalgcodesender/uielements/panels/ConnectionSettingsPanel.java
@@ -52,7 +52,7 @@ public class ConnectionSettingsPanel extends AbstractUGSSettings {
             new SpinnerNumberModel(1, 1, null, 100));
     private final Spinner safetyHeight = new Spinner(
             Localization.getString("sender.safety-height"),
-            new SpinnerNumberModel(1, 1, null, 1));
+            new SpinnerNumberModel(1, 0, null, 1));
     private final Checkbox invertMouseZoom = new Checkbox(
             Localization.getString("sender.invertMouseZoom"));
     private final Checkbox showNightlyWarning = new Checkbox(