diff --git a/assets/packages/questions/numeric-slider/scripts/numeric-slider.js b/assets/packages/questions/numeric-slider/scripts/numeric-slider.js
index d773ef80d79..09a3a2b62d0 100644
--- a/assets/packages/questions/numeric-slider/scripts/numeric-slider.js
+++ b/assets/packages/questions/numeric-slider/scripts/numeric-slider.js
@@ -98,6 +98,10 @@ var LSSlider = function (options) {
         },
         setValue = function (value) {
             value = value || parseFloat(position);
+            // If value is NaN, validation fails while first moving the slider
+            if (isNaN(value)) {
+                value = "";
+            }
             sliderObject.setValue(value, true, true);
             elementObject.val(value.toString().replace('.', separator)).trigger('keyup');
             writeToRootElement(value);