diff --git a/applet/contents/ui/ConfigGeneral.qml b/applet/contents/ui/ConfigGeneral.qml
--- a/applet/contents/ui/ConfigGeneral.qml
+++ b/applet/contents/ui/ConfigGeneral.qml
@@ -45,9 +45,13 @@
         from: 10
         to: 150
         stepSize: 1
+        editable: true
         textFromValue: function(value) {
             return value + "%";
         }
+        valueFromText: function(text) {
+            return parseInt(text);
+        }
     }
 
     QQC2.SpinBox {
@@ -59,9 +63,13 @@
         from: 1
         to: 100
         stepSize: 1
+        editable: true
         textFromValue: function(value) {
             return value + "%";
         }
+        valueFromText: function(text) {
+            return parseInt(text);
+        }
     }