diff --git a/src/vedit.cpp b/src/vedit.cpp
index 94f90d10..b669b638 100644
--- a/src/vedit.cpp
+++ b/src/vedit.cpp
@@ -180,7 +180,8 @@ void VEdit::generateEditOutline()
     QRegExp headerReg("(#{1,6})\\s*(\\S.*)");  // Need to trim the spaces
     for (QTextBlock block = doc->begin(); block != doc->end(); block = block.next()) {
         Q_ASSERT(block.lineCount() == 1);
-        if (headerReg.exactMatch(block.text())) {
+        if ((block.userState() == HighlightBlockState::BlockNormal) &&
+            headerReg.exactMatch(block.text())) {
             VHeader header(headerReg.cap(1).length(),
                            headerReg.cap(2).trimmed(), "", block.firstLineNumber());
             headers.append(header);