diff --git a/src/plugins/texteditor/texteditor.cpp b/src/plugins/texteditor/texteditor.cpp
index 57b89fb5d8d..35d8222c746 100644
--- a/src/plugins/texteditor/texteditor.cpp
+++ b/src/plugins/texteditor/texteditor.cpp
@@ -4766,10 +4766,13 @@ void TextEditorWidgetPrivate::updateCurrentLineInScrollbar()
         m_highlightScrollBar->removeHighlights(Constants::SCROLL_BAR_CURRENT_LINE);
         if (m_highlightScrollBar->maximum() > 0) {
             const QTextCursor &tc = q->textCursor();
-            const int lineNumberInBlock =
-                    tc.block().layout()->lineForTextPosition(tc.positionInBlock()).lineNumber();
-            m_highlightScrollBar->addHighlight(Constants::SCROLL_BAR_CURRENT_LINE,
-                                               q->textCursor().block().firstLineNumber() + lineNumberInBlock);
+            if (QTextLayout *layout = tc.block().layout()) {
+                const int lineNumberInBlock =
+                        layout->lineForTextPosition(tc.positionInBlock()).lineNumber();
+                m_highlightScrollBar->addHighlight(
+                            Constants::SCROLL_BAR_CURRENT_LINE,
+                            q->textCursor().block().firstLineNumber() + lineNumberInBlock);
+            }
         }
     }
 }