diff --git a/src/plugins/texteditor/textdocument.cpp b/src/plugins/texteditor/textdocument.cpp
index 707d87a97a4..f146507e4c0 100644
--- a/src/plugins/texteditor/textdocument.cpp
+++ b/src/plugins/texteditor/textdocument.cpp
@@ -957,7 +957,13 @@ void TextDocument::removeMark(TextMark *mark)
 
 void TextDocument::updateMark(TextMark *mark)
 {
-    Q_UNUSED(mark)
+    QTextBlock block = d->m_document.findBlockByNumber(mark->lineNumber() - 1);
+    if (block.isValid()) {
+        TextBlockUserData *userData = TextDocumentLayout::userData(block);
+        // re-evaluate priority
+        userData->removeMark(mark);
+        userData->addMark(mark);
+    }
     auto documentLayout = qobject_cast<TextDocumentLayout*>(d->m_document.documentLayout());
     QTC_ASSERT(documentLayout, return);
     documentLayout->requestUpdate();
diff --git a/src/plugins/texteditor/textmark.cpp b/src/plugins/texteditor/textmark.cpp
index fcca18ef9bb..975cc7a41c5 100644
--- a/src/plugins/texteditor/textmark.cpp
+++ b/src/plugins/texteditor/textmark.cpp
@@ -131,6 +131,12 @@ void TextMark::updateMarker()
         m_baseTextDocument->updateMark(this);
 }
 
+void TextMark::setPriority(TextMark::Priority prioriy)
+{
+    m_priority = prioriy;
+    updateMarker();
+}
+
 bool TextMark::isVisible() const
 {
     return m_visible;
@@ -139,8 +145,7 @@ bool TextMark::isVisible() const
 void TextMark::setVisible(bool visible)
 {
     m_visible = visible;
-    if (m_baseTextDocument)
-        m_baseTextDocument->updateMark(this);
+    updateMarker();
 }
 
 double TextMark::widthFactor() const
diff --git a/src/plugins/texteditor/textmark.h b/src/plugins/texteditor/textmark.h
index e50266a5ac2..162ac2f7943 100644
--- a/src/plugins/texteditor/textmark.h
+++ b/src/plugins/texteditor/textmark.h
@@ -82,7 +82,7 @@ public:
     // call this if the icon has changed.
     void updateMarker();
     Priority priority() const { return m_priority;}
-    void setPriority(Priority prioriy) { m_priority = prioriy; }
+    void setPriority(Priority prioriy);
     bool isVisible() const;
     void setVisible(bool isVisible);
     Core::Id category() const { return m_category; }