diff --git a/packages/primevue/src/inputnumber/style/InputNumberStyle.js b/packages/primevue/src/inputnumber/style/InputNumberStyle.js
index 98234bb85..800699ef3 100644
--- a/packages/primevue/src/inputnumber/style/InputNumberStyle.js
+++ b/packages/primevue/src/inputnumber/style/InputNumberStyle.js
@@ -40,6 +40,7 @@ const theme = ({ dt }) => `
     top: 1px;
     right: 1px;
     height: calc(100% - 2px);
+    z-index: 1;
 }
 
 .p-inputnumber-stacked .p-inputnumber-increment-button {