1 files changed, 1 insertions, 1 deletions
diff --git a/src/gui/text/qsyntaxhighlighter.cpp b/src/gui/text/qsyntaxhighlighter.cpp
index 0e07b69868..102a776ed3 100644
--- a/src/gui/text/qsyntaxhighlighter.cpp
+++ b/src/gui/text/qsyntaxhighlighter.cpp
@@ -297,7 +297,7 @@ void QSyntaxHighlighterPrivate::reformatBlock(const QTextBlock &block)
 QSyntaxHighlighter::QSyntaxHighlighter(QObject *parent)
     : QObject(*new QSyntaxHighlighterPrivate, parent)
 {
-    if (parent->inherits("QTextEdit")) {
+    if (parent && parent->inherits("QTextEdit")) {
         QTextDocument *doc = parent->property("document").value<QTextDocument *>();
         if (doc)
             setDocument(doc);