diff --git a/Gui/AddContact.qml b/Gui/AddContact.qml
index c925bcd..6e37ff7 100644
--- a/Gui/AddContact.qml
+++ b/Gui/AddContact.qml
@@ -117,6 +117,7 @@ GridLayout
         text: qsTr("Geburtsdatum")
         Layout.alignment: Qt.AlignRight
     }
+
     TextField
     {
         property string name: "birthday"
@@ -124,16 +125,21 @@ GridLayout
         Layout.fillWidth: true
         placeholderText: qsTr("TT.MM.JJJJ")
         validator: RegularExpressionValidator
+
         {
-            regularExpression: /((^|)([0-2]{1}[0-9]{1}|3[0-1]))\.((^|)(0[1-9]{1}|1[0-2]{1}))\.((^|)(196[0-9]{1}|19[7-9]{1}[0-9]{1}|20[0-9]{2}))/
+            regularExpression: /((^|)(0[1-9]{1}|[1-2]{1}[0-9]{1}|3[0-1]))\.((^|)(0[1-9]{1}|1[0-2]{1}))\.((^|)(196[0-9]{1}|19[7-9]{1}[0-9]{1}|20[0-9]{2}))/
+        }
+        Keys.onPressed: (event)=>
+        {
+            if (event.key !== Qt.Key_Backspace)
+            {
+                var len = birthday.length
+                var bd = birthday.text
+                if (len === 2 || len === 5) birthday.text = bd + "."
+            }
+
         }
 
-        onTextChanged:
-        {
-            var len = birthday.length
-            var bd = birthday.text
-            if (len == 2 || len == 5) birthday.text = bd + "."
-        }
     }
 
     Label