diff --git a/ContextMenu.js b/ContextMenu.js
index b5c3bef..5e36b86 100644
--- a/ContextMenu.js
+++ b/ContextMenu.js
@@ -156,8 +156,9 @@ function useContextMenu(props = {}) {
       left = windowWidth - menuWidth;
     }
 
-    if (top + menuHeight > windowHeight) {
-      top = windowHeight - menuHeight;
+    const screenBottom = window.pageYOffset + windowHeight;
+    if (top + menuHeight > screenBottom) {
+      top = screenBottom - menuHeight;
     }
 
     return { left, top };
diff --git a/index.js b/index.js
index c0911f7..7d247e3 100644
--- a/index.js
+++ b/index.js
@@ -241,8 +241,10 @@ function useContextMenu() {
       left = windowWidth - menuWidth;
     }
 
-    if (top + menuHeight > windowHeight) {
-      top = windowHeight - menuHeight;
+    var screenBottom = window.pageYOffset + windowHeight;
+
+    if (top + menuHeight > screenBottom) {
+      top = screenBottom - menuHeight;
     }
 
     return {
diff --git a/package.json b/package.json
index f6e475b..5b680c2 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "contextmenu",
-  "version": "1.0.2",
+  "version": "1.0.3",
   "license": "MIT",
   "eslintConfig": {
     "extends": "react-app"