diff --git a/packages/primevue/src/inputnumber/InputNumber.vue b/packages/primevue/src/inputnumber/InputNumber.vue
index 9c76a08b6b..01e0a4e4ac 100755
--- a/packages/primevue/src/inputnumber/InputNumber.vue
+++ b/packages/primevue/src/inputnumber/InputNumber.vue
@@ -387,8 +387,9 @@ export default {
             let selectionEnd = event.target.selectionEnd;
             let inputValue = event.target.value;
             let newValueStr = null;
+            const code = event.code || event.key;
 
-            switch (event.code) {
+            switch (code) {
                 case 'ArrowUp':
                     this.spin(event, 1);
                     event.preventDefault();