diff --git a/src/plugins/texteditor/texteditor.cpp b/src/plugins/texteditor/texteditor.cpp
index 3594493013b..303c5884667 100644
--- a/src/plugins/texteditor/texteditor.cpp
+++ b/src/plugins/texteditor/texteditor.cpp
@@ -7847,7 +7847,7 @@ struct MappedText
 
 void TextEditorWidget::insertFromMimeData(const QMimeData *source)
 {
-    if (isReadOnly())
+    if (!source || isReadOnly())
         return;
 
     QString text = source->text();
@@ -7857,7 +7857,6 @@ void TextEditorWidget::insertFromMimeData(const QMimeData *source)
     if (d->m_codeAssistant.hasContext())
         d->m_codeAssistant.destroyContext();
 
-
     if (d->m_snippetOverlay->isVisible() && (text.contains('\n') || text.contains('\t')))
         d->m_snippetOverlay->accept();