diff --git a/plugins/standardoutputview/outputwidget.cpp b/plugins/standardoutputview/outputwidget.cpp
--- a/plugins/standardoutputview/outputwidget.cpp
+++ b/plugins/standardoutputview/outputwidget.cpp
@@ -671,8 +671,12 @@
 
 void OutputWidget::setTitle(int outputId, const QString& title)
 {
-    if( data->type & KDevelop::IOutputView::MultipleView ) {
-        tabwidget->setTabText(outputId - 1, title);
+    QTreeView* view = views.value(outputId, nullptr);
+    if(view && (data->type & KDevelop::IOutputView::MultipleView)) {
+        int idx = tabwidget->indexOf(view);
+        if (idx >= 0) {
+            tabwidget->setTabText(idx, title);
+        }
     }
 }
 
diff --git a/plugins/standardoutputview/standardoutputview.cpp b/plugins/standardoutputview/standardoutputview.cpp
--- a/plugins/standardoutputview/standardoutputview.cpp
+++ b/plugins/standardoutputview/standardoutputview.cpp
@@ -309,5 +309,8 @@
 
 void StandardOutputView::setTitle(int outputId, const QString& title)
 {
-    outputWidgetForId(outputId)->setTitle(outputId, title);
+    OutputWidget* widget = outputWidgetForId(outputId);
+    if (widget) {
+        widget->setTitle(outputId, title);
+    }
 }