diff --git a/README.md b/README.md
index 1936395..36186dd 100644
--- a/README.md
+++ b/README.md
@@ -137,7 +137,7 @@ If `gravity` is equals to `bottom`, it will be pushed from bottom.
 |-----------------|----------------------|----------------------------------------------------------------------------|-------------|
 | text | string | Message to be displayed in the toast | "Hi there!" |
 | node | ELEMENT_NODE | Provide a node to be mounted inside the toast. `node` takes higher precedence over `text` |  |
-| duration | number | Duration for which the toast should be displayed.<br>-1 for permanent toast | 3000 |
+| duration | number | Duration for which the toast should be displayed.<br>`-1` or `Infinity` for permanent toast | 3000 |
 | selector | string \| ELEMENT_NODE | ShadowRoot | CSS Selector or Element Node on which the toast should be added | body |
 | destination | URL string | URL to which the browser should be navigated on click of the toast |  |
 | newWindow | boolean | Decides whether the `destination` should be opened in a new window or not | false |
diff --git a/src/toastify.js b/src/toastify.js
index 5d9659c..2ef717d 100644
--- a/src/toastify.js
+++ b/src/toastify.js
@@ -198,7 +198,7 @@
       }
 
       // Clear timeout while toast is focused
-      if (this.options.stopOnFocus && this.options.duration > 0) {
+      if (this.options.stopOnFocus && this.options.duration > 0 && this.options.duration !== Infinity) {
         var self = this;
         // stop countdown
         divElement.addEventListener(