diff --git a/src/plugins/texteditor/generichighlighter/highlighter.cpp b/src/plugins/texteditor/generichighlighter/highlighter.cpp
index 30abec1..47a517c 100644
--- a/src/plugins/texteditor/generichighlighter/highlighter.cpp
+++ b/src/plugins/texteditor/generichighlighter/highlighter.cpp
@@ -597,7 +597,8 @@ void Highlighter::applyIndentationBasedFolding(const QString &text) const
                 data->setFoldingIndent(previousIndent);
         }
     } else {
-        data->setFoldingIndent(m_tabSettings->indentationColumn(text));
+        if (m_tabSettings)
+            data->setFoldingIndent(m_tabSettings->indentationColumn(text));
     }
 }
 
@@ -612,7 +613,14 @@ int Highlighter::neighbouringNonEmptyBlockIndent(QTextBlock block, const bool pr
             else
                 block = block.next();
         } else {
-            return m_tabSettings->indentationColumn(block.text());
+            if (m_tabSettings)
+            {
+                return m_tabSettings->indentationColumn(block.text());
+            }
+            else
+            {
+                return 0;
+            }
         }
     }
 }