diff --git a/src/components/Slider/Slider.tsx b/src/components/Slider/Slider.tsx
index dc2fb1c075..f2f57e330a 100644
--- a/src/components/Slider/Slider.tsx
+++ b/src/components/Slider/Slider.tsx
@@ -23,7 +23,7 @@ export const Slider = React.forwardRef(function Slider(
         step = 1,
         infoPointCount = 0,
         availableValues,
-        withTooltip = true,
+        withTooltip = false,
         error = false,
         disabled = false,
         keyboard = true,
diff --git a/src/components/Slider/sliderTypes.d.ts b/src/components/Slider/sliderTypes.d.ts
index c94499c52c..d393db1d89 100644
--- a/src/components/Slider/sliderTypes.d.ts
+++ b/src/components/Slider/sliderTypes.d.ts
@@ -11,7 +11,7 @@ export type RcSliderValueType = number | number[];
 export type SliderProps<ValueType = number | [number, number]> = {
     value?: ValueType;
     defaultValue?: ValueType;
-    size: SliderSize;
+    size?: SliderSize;
     min?: number;
     max?: number;
     step?: number;