diff --git a/react/features/base/participants/middleware.ts b/react/features/base/participants/middleware.ts
index f2ea70434..ae6e88a33 100644
--- a/react/features/base/participants/middleware.ts
+++ b/react/features/base/participants/middleware.ts
@@ -249,7 +249,7 @@ MiddlewareRegistry.register(store => next => action => {
 
     case RAISE_HAND_UPDATED: {
         const { participant } = action;
-        let queue = getRaiseHandsQueue(store.getState());
+        let queue = [ ...getRaiseHandsQueue(store.getState()) ];
 
         if (participant.raisedHandTimestamp) {
             queue.push({