diff --git a/src/renderers/dom/client/utils/setInnerHTML.js b/src/renderers/dom/client/utils/setInnerHTML.js
index 222ddfbdceba7..1e491bfaf3820 100644
--- a/src/renderers/dom/client/utils/setInnerHTML.js
+++ b/src/renderers/dom/client/utils/setInnerHTML.js
@@ -79,6 +79,7 @@ if (ExecutionEnvironment.canUseDOM) {
       }
     };
   }
+  testElement = null;
 }
 
 module.exports = setInnerHTML;