diff --git a/src/gui/text/qdistancefield.cpp b/src/gui/text/qdistancefield.cpp
index 17824a5ba1..d8a971c7b7 100644
--- a/src/gui/text/qdistancefield.cpp
+++ b/src/gui/text/qdistancefield.cpp
@@ -899,9 +899,6 @@ QDistanceField::QDistanceField(int width, int height)
 {
 }
 
-QDistanceField &QDistanceField::operator=(const QDistanceField &)
-    = default;
-
 QDistanceField::QDistanceField(const QRawFont &font, glyph_t glyph, bool doubleResolution)
 {
     setGlyph(font, glyph, doubleResolution);
diff --git a/src/gui/text/qdistancefield_p.h b/src/gui/text/qdistancefield_p.h
index d6d8edd85d..823bfaf1c6 100644
--- a/src/gui/text/qdistancefield_p.h
+++ b/src/gui/text/qdistancefield_p.h
@@ -94,7 +94,6 @@ public:
     QDistanceField(const QRawFont &font, glyph_t glyph, bool doubleResolution = false);
     QDistanceField(QFontEngine *fontEngine, glyph_t glyph, bool doubleResolution = false);
     QDistanceField(const QPainterPath &path, glyph_t glyph, bool doubleResolution = false);
-    QDistanceField &operator=(const QDistanceField &other);
 
     bool isNull() const;