diff --git a/webapp/src/components/labThingsComponents/inputFromSchema.vue b/webapp/src/components/labThingsComponents/inputFromSchema.vue
index 891075ea..fa1f4bd4 100644
--- a/webapp/src/components/labThingsComponents/inputFromSchema.vue
+++ b/webapp/src/components/labThingsComponents/inputFromSchema.vue
@@ -34,8 +34,8 @@
             @animationend="animationEnd"
           />
           <div class="spinner-buttons">
-            <button type="button" @click="increment(1)" @mousedown="spinnerClick">▲</button>
-            <button type="button" @click="increment(-1)" @mousedown="spinnerClick">▼</button>
+            <button type="button" tabindex="-1" @click="increment(1)" @mousedown="spinnerClick">▲</button>
+            <button type="button" tabindex="-1" @click="increment(-1)" @mousedown="spinnerClick">▼</button>
           </div>
         </div>
         <sync-property-button @click="requestUpdate" />