diff --git a/src/helpers/prevent-utils.js b/src/helpers/prevent-utils.js
index 227e6b67..ee662a8d 100644
--- a/src/helpers/prevent-utils.js
+++ b/src/helpers/prevent-utils.js
@@ -26,7 +26,8 @@ export const isValidCallback = (callback) => {
  * @returns {any} number as parsed delay or any input type if `delay` is not parsable
  */
 export const parseRawDelay = (delay) => {
-    return Math.floor(Number(delay)) || delay;
+    const parsedDelay = Math.floor(Number(delay));
+    return typeof parsedDelay === 'number' ? parsedDelay : delay;
 };
 
 /**