diff --git a/dolphin/ollie-session-here b/dolphin/ollie-session-here
index 5813eb1..e7f6949 100755
--- a/dolphin/ollie-session-here
+++ b/dolphin/ollie-session-here
@@ -8,7 +8,7 @@ TARGET="$(cd "$TARGET" 2>/dev/null && pwd)" || TARGET="$PWD"
 
 RESULT=$(dbus-send --session --dest=org.ollie.SessionManager --type=method_call --print-reply \
     /org/ollie/SessionManager org.ollie.SessionManager.CreateSession \
-    string:"$TARGET" string:"" string:"" string:"default" 2>&1)
+    string:"$TARGET" string:"" string:"" string:"default" string:"" 2>&1)
 
 SESSION_ID=$(echo "$RESULT" | grep 'string "' | head -1 | sed 's/.*string "\(.*\)"/\1/')
 
diff --git a/kate/ollie_kate.cpp b/kate/ollie_kate.cpp
index 90ee77c..34b6a86 100644
--- a/kate/ollie_kate.cpp
+++ b/kate/ollie_kate.cpp
@@ -587,7 +587,7 @@ void OllieKateView::newSession()
 
     QString backend = m_plugin->defaultBackend();
     QString model = m_plugin->defaultModel();
-    QDBusReply<QString> reply = m_iface->call("CreateSession", cwd, backend, model, "default");
+    QDBusReply<QString> reply = m_iface->call("CreateSession", cwd, backend, model, "default", QString());
     if (reply.isValid()) {
         m_sessionId = reply.value();
         m_rawChat.clear();
diff --git a/plasmoid/plugin/olliedbusclient.cpp b/plasmoid/plugin/olliedbusclient.cpp
index 0a24861..2972704 100644
--- a/plasmoid/plugin/olliedbusclient.cpp
+++ b/plasmoid/plugin/olliedbusclient.cpp
@@ -271,7 +271,7 @@ QString OllieDBusClient::createSession(const QString &cwd)
 {
     QString dir = cwd.isEmpty() ? QDir::homePath() : cwd;
     // Use asyncCall — we'll pick up the new session via the SessionCreated signal
-    m_iface->asyncCall("CreateSession", dir, QString(), QString(), QString("default"));
+    m_iface->asyncCall("CreateSession", dir, QString(), QString(), QString("default"), QString());
     return QString();  // ID not available synchronously; signal will trigger refresh
 }
 
diff --git a/test-e2e.sh b/test-e2e.sh
index 0bc1ee2..39bc90b 100755
--- a/test-e2e.sh
+++ b/test-e2e.sh
@@ -23,7 +23,7 @@ echo ""
 echo "=== CreateSession ==="
 RESULT=$(dbus-send --session --dest=$SERVICE --type=method_call --print-reply \
     $PATH_OBJ $IFACE.CreateSession \
-    string:"$HOME" string:"" string:"" string:"default")
+    string:"$HOME" string:"" string:"" string:"default" string:"")
 echo "$RESULT"
 SESSION_ID=$(echo "$RESULT" | grep 'string "' | head -1 | sed 's/.*string "//;s/"//')
 echo "Session ID: $SESSION_ID"
diff --git a/test-peers.sh b/test-peers.sh
index 0ed9bbd..d1572fa 100755
--- a/test-peers.sh
+++ b/test-peers.sh
@@ -9,12 +9,12 @@ IFACE="org.ollie.SessionManager"
 
 echo "=== Create session A ==="
 A=$(dbus-send --session --dest=$SERVICE --type=method_call --print-reply \
-    $OBJ $IFACE.CreateSession string:"$HOME" string:"" string:"" string:"default" | grep 'string "' | head -1 | sed 's/.*string "//;s/"//')
+    $OBJ $IFACE.CreateSession string:"$HOME" string:"" string:"" string:"default" string:"" | grep 'string "' | head -1 | sed 's/.*string "//;s/"//')
 echo "A: $A"
 
 echo "=== Create session B ==="
 B=$(dbus-send --session --dest=$SERVICE --type=method_call --print-reply \
-    $OBJ $IFACE.CreateSession string:"$HOME" string:"" string:"" string:"default" | grep 'string "' | head -1 | sed 's/.*string "//;s/"//')
+    $OBJ $IFACE.CreateSession string:"$HOME" string:"" string:"" string:"default" string:"" | grep 'string "' | head -1 | sed 's/.*string "//;s/"//')
 echo "B: $B"
 
 echo ""
diff --git a/tray/ollie_tray.cpp b/tray/ollie_tray.cpp
index e1409d0..75c2d8e 100644
--- a/tray/ollie_tray.cpp
+++ b/tray/ollie_tray.cpp
@@ -137,7 +137,7 @@ void OllieTray::onStateChanged(const QString &session_id, const QString &new_sta
 void OllieTray::newSession()
 {
     QString cwd = QDir::homePath();
-    QDBusReply<QString> reply = m_iface->call("CreateSession", cwd, QString(), QString(), "default");
+    QDBusReply<QString> reply = m_iface->call("CreateSession", cwd, QString(), QString(), "default", QString());
     if (reply.isValid()) {
         qDebug() << "Created session:" << reply.value();
     } else {