diff --git a/packages/react-devtools-shared/src/backend/renderer.js b/packages/react-devtools-shared/src/backend/renderer.js
index 17e5930f2977a..0bf109d4268f8 100644
--- a/packages/react-devtools-shared/src/backend/renderer.js
+++ b/packages/react-devtools-shared/src/backend/renderer.js
@@ -918,7 +918,7 @@ export function attach(
   }
 
   function didHooksChange(prev: any, next: any): boolean {
-    if (next == null) {
+    if (prev == null || next == null) {
       return false;
     }