diff --git a/src/plugins/texteditor/textdocument.cpp b/src/plugins/texteditor/textdocument.cpp
index 0f77c2568da..bdb6e7812b6 100644
--- a/src/plugins/texteditor/textdocument.cpp
+++ b/src/plugins/texteditor/textdocument.cpp
@@ -466,8 +466,10 @@ void TextDocument::applyFontSettings()
         block = block.next();
     }
     updateLayout();
-    if (d->m_highlighter)
+    if (d->m_highlighter) {
         d->m_highlighter->setFontSettings(d->m_fontSettings);
+        d->m_highlighter->scheduleRehighlight();
+    }
 }
 
 const FontSettings &TextDocument::fontSettings() const