diff --git a/src/Gui/TextDocumentEditorView.cpp b/src/Gui/TextDocumentEditorView.cpp
index 8d66d11d51..43fbb2980d 100644
--- a/src/Gui/TextDocumentEditorView.cpp
+++ b/src/Gui/TextDocumentEditorView.cpp
@@ -70,6 +70,7 @@ TextDocumentEditorView::TextDocumentEditorView(
 TextDocumentEditorView::~TextDocumentEditorView()
 {
     textConnection.disconnect();
+    labelConnection.disconnect();
 }
 
 void TextDocumentEditorView::showEvent(QShowEvent* event)