diff --git a/CHANGES.md b/CHANGES.md
index 54dd5e5247..fb1ed4371d 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -6,6 +6,7 @@ Features ✨:
 
 Improvements 🙌:
  - Sharing things to RiotX: sort list by recent room first (#771)
+ - Hide the algorithm when turning on e2e (#897)
 
 Other changes:
  -
diff --git a/matrix-sdk-android/src/main/res/values/strings_RiotX.xml b/matrix-sdk-android/src/main/res/values/strings_RiotX.xml
index d781ec5f1e..d030b857cf 100644
--- a/matrix-sdk-android/src/main/res/values/strings_RiotX.xml
+++ b/matrix-sdk-android/src/main/res/values/strings_RiotX.xml
@@ -1,4 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
 
+    <string name="notice_end_to_end_ok">%1$s turned on end-to-end encryption.</string>
+    <string name="notice_end_to_end_unknown_algorithm">%1$s turned on end-to-end encryption (unrecognised algorithm %2$s).</string>
+
 </resources>
diff --git a/vector/src/main/java/im/vector/riotx/features/home/room/detail/timeline/format/NoticeEventFormatter.kt b/vector/src/main/java/im/vector/riotx/features/home/room/detail/timeline/format/NoticeEventFormatter.kt
index 563a970cfb..16275e6a73 100644
--- a/vector/src/main/java/im/vector/riotx/features/home/room/detail/timeline/format/NoticeEventFormatter.kt
+++ b/vector/src/main/java/im/vector/riotx/features/home/room/detail/timeline/format/NoticeEventFormatter.kt
@@ -19,9 +19,21 @@ package im.vector.riotx.features.home.room.detail.timeline.format
 import im.vector.matrix.android.api.session.events.model.Event
 import im.vector.matrix.android.api.session.events.model.EventType
 import im.vector.matrix.android.api.session.events.model.toModel
-import im.vector.matrix.android.api.session.room.model.*
+import im.vector.matrix.android.api.session.room.model.GuestAccess
+import im.vector.matrix.android.api.session.room.model.Membership
+import im.vector.matrix.android.api.session.room.model.RoomAliasesContent
+import im.vector.matrix.android.api.session.room.model.RoomCanonicalAliasContent
+import im.vector.matrix.android.api.session.room.model.RoomGuestAccessContent
+import im.vector.matrix.android.api.session.room.model.RoomHistoryVisibility
+import im.vector.matrix.android.api.session.room.model.RoomHistoryVisibilityContent
+import im.vector.matrix.android.api.session.room.model.RoomJoinRules
+import im.vector.matrix.android.api.session.room.model.RoomJoinRulesContent
+import im.vector.matrix.android.api.session.room.model.RoomMemberContent
+import im.vector.matrix.android.api.session.room.model.RoomNameContent
+import im.vector.matrix.android.api.session.room.model.RoomTopicContent
 import im.vector.matrix.android.api.session.room.model.call.CallInviteContent
 import im.vector.matrix.android.api.session.room.timeline.TimelineEvent
+import im.vector.matrix.android.internal.crypto.MXCRYPTO_ALGORITHM_MEGOLM
 import im.vector.matrix.android.internal.crypto.model.event.EncryptionEventContent
 import im.vector.riotx.R
 import im.vector.riotx.core.di.ActiveSessionHolder
@@ -180,7 +192,11 @@ class NoticeEventFormatter @Inject constructor(private val sessionHolder: Active
 
     private fun formatRoomEncryptionEvent(event: Event, senderName: String?): CharSequence? {
         val content = event.content.toModel<EncryptionEventContent>() ?: return null
-        return sp.getString(R.string.notice_end_to_end, senderName, content.algorithm)
+        return if (content.algorithm == MXCRYPTO_ALGORITHM_MEGOLM) {
+            sp.getString(R.string.notice_end_to_end_ok, senderName)
+        } else {
+            sp.getString(R.string.notice_end_to_end_unknown_algorithm, senderName, content.algorithm)
+        }
     }
 
     private fun buildProfileNotice(event: Event, senderName: String?, eventContent: RoomMemberContent?, prevEventContent: RoomMemberContent?): String {