diff --git a/src/main/java/eu/siacs/conversations/crypto/axolotl/AxolotlService.java b/src/main/java/eu/siacs/conversations/crypto/axolotl/AxolotlService.java
index 9005025e90b3c3530413837c9b82ca92a11603b1..58083b67afd1b5cda8485a6df82d89ae5ca25ce6 100644
--- a/src/main/java/eu/siacs/conversations/crypto/axolotl/AxolotlService.java
+++ b/src/main/java/eu/siacs/conversations/crypto/axolotl/AxolotlService.java
@@ -1437,7 +1437,7 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
 
 	private void completeSession(XmppAxolotlSession session) {
 		final XmppAxolotlMessage axolotlMessage = new XmppAxolotlMessage(account.getJid().asBareJid(), getOwnDeviceId());
-		axolotlMessage.addDevice(session);
+		axolotlMessage.addDevice(session, true);
 		try {
 			Jid jid = Jid.of(session.getRemoteAddress().getName());
 			MessagePacket packet = mXmppConnectionService.getMessageGenerator().generateKeyTransportMessage(jid, axolotlMessage);
diff --git a/src/main/java/eu/siacs/conversations/crypto/axolotl/XmppAxolotlMessage.java b/src/main/java/eu/siacs/conversations/crypto/axolotl/XmppAxolotlMessage.java
index b6273a88d238fbc7ac4331edb4edb80cb0e52dea..587944ff8207bb26d4111b6c1642db9897863bb5 100644
--- a/src/main/java/eu/siacs/conversations/crypto/axolotl/XmppAxolotlMessage.java
+++ b/src/main/java/eu/siacs/conversations/crypto/axolotl/XmppAxolotlMessage.java
@@ -218,16 +218,20 @@ public class XmppAxolotlMessage {
 		return this.from;
 	}
 
-	public int getSenderDeviceId() {
+	int getSenderDeviceId() {
 		return sourceDeviceId;
 	}
 
-	public void addDevice(XmppAxolotlSession session) {
+	void addDevice(XmppAxolotlSession session) {
+		addDevice(session, false);
+	}
+
+	void addDevice(XmppAxolotlSession session, boolean ignoreSessionTrust) {
 		XmppAxolotlSession.AxolotlKey key;
 		if (authtagPlusInnerKey != null) {
-			key = session.processSending(authtagPlusInnerKey);
+			key = session.processSending(authtagPlusInnerKey, ignoreSessionTrust);
 		} else {
-			key = session.processSending(innerKey);
+			key = session.processSending(innerKey, ignoreSessionTrust);
 		}
 		if (key != null) {
 			keys.put(session.getRemoteAddress().getDeviceId(), key);
diff --git a/src/main/java/eu/siacs/conversations/crypto/axolotl/XmppAxolotlSession.java b/src/main/java/eu/siacs/conversations/crypto/axolotl/XmppAxolotlSession.java
index 0a7bef569d82a7af8f3184a60b54a0edefb66e37..73af41af69f719c301f756095b42a85896a43826 100644
--- a/src/main/java/eu/siacs/conversations/crypto/axolotl/XmppAxolotlSession.java
+++ b/src/main/java/eu/siacs/conversations/crypto/axolotl/XmppAxolotlSession.java
@@ -118,9 +118,9 @@ public class XmppAxolotlSession implements Comparable<XmppAxolotlSession> {
 	}
 
 	@Nullable
-	public AxolotlKey processSending(@NonNull byte[] outgoingMessage) {
+	public AxolotlKey processSending(@NonNull byte[] outgoingMessage, boolean ignoreSessionTrust) {
 		FingerprintStatus status = getTrust();
-		if (status.isTrustedAndActive()) {
+		if (ignoreSessionTrust || status.isTrustedAndActive()) {
 			try {
 				CiphertextMessage ciphertextMessage = cipher.encrypt(outgoingMessage);
 				return new AxolotlKey(ciphertextMessage.serialize(),ciphertextMessage.getType() == CiphertextMessage.PREKEY_TYPE);