diff --git a/resources/qml/Settings/SettingTextField.qml b/resources/qml/Settings/SettingTextField.qml
index 427b482cea..da24f0f521 100644
--- a/resources/qml/Settings/SettingTextField.qml
+++ b/resources/qml/Settings/SettingTextField.qml
@@ -100,7 +100,7 @@ SettingItem
 
             maximumLength: 10;
 
-            validator: RegExpValidator { regExp: (definition.type == "int") ? /^-?[0-9]{0,10}$/ : /^-?[0-9]?[.,]?[0-9]{0,10}$/ } // definition.type property from parent loader used to disallow fractional number entry
+            validator: RegExpValidator { regExp: (definition.type == "int") ? /^-?[0-9]{0,10}$/ : /^-?[0-9]{0,9}[.,]?[0-9]{0,10}$/ } // definition.type property from parent loader used to disallow fractional number entry
 
             Binding
             {