diff --git a/components/lib/inputnumber/InputNumber.js b/components/lib/inputnumber/InputNumber.js
index a76f604412..271d6afb17 100644
--- a/components/lib/inputnumber/InputNumber.js
+++ b/components/lib/inputnumber/InputNumber.js
@@ -555,7 +555,11 @@ export const InputNumber = React.memo(
         };
 
         const replaceDecimalSeparator = (val) => {
-            return isDecimalSign(val) ? val.toString().replace(/\.(?=[^.]*$)/, _decimalSeparator.current) : val;
+            if (isFloat(val)) {
+                return val.toString().replace(/\.(?=[^.]*$)/, _decimalSeparator.current);
+            }
+
+            return val;
         };
 
         const isDecimalSign = (char) => {