diff --git a/src/app/components/inputnumber/inputnumber.ts b/src/app/components/inputnumber/inputnumber.ts
index 4c1212b833f..29039ba6e05 100644
--- a/src/app/components/inputnumber/inputnumber.ts
+++ b/src/app/components/inputnumber/inputnumber.ts
@@ -832,7 +832,7 @@ export class InputNumber implements OnInit, AfterContentInit, OnChanges, Control
             event.preventDefault();
         }
 
-        switch (event.code) {
+        switch (event.key) {
             case 'ArrowUp':
                 this.spin(event, 1);
                 event.preventDefault();