diff --git a/src/store/participantsStore.js b/src/store/participantsStore.js
index 5ebfa531d590..7d54a2bf084c 100644
--- a/src/store/participantsStore.js
+++ b/src/store/participantsStore.js
@@ -317,7 +317,7 @@ const mutations = {
 
 	updateParticipant(state, { token, attendeeId, updatedData }) {
 		if (state.attendees[token] && state.attendees[token][attendeeId]) {
-			state.attendees[token][attendeeId] = Object.assign(state.attendees[token][attendeeId], updatedData)
+			state.attendees[token][attendeeId] = Object.assign({}, state.attendees[token][attendeeId], updatedData)
 		} else {
 			console.error('Error while updating the participant')
 		}