diff --git a/src/gui/text/qdistancefield.cpp b/src/gui/text/qdistancefield.cpp
index 82bb617733..5967c8d3de 100644
--- a/src/gui/text/qdistancefield.cpp
+++ b/src/gui/text/qdistancefield.cpp
@@ -904,6 +904,9 @@ QDistanceField::QDistanceField(const QDistanceField &other)
     d = other.d;
 }
 
+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 1a1b6866a2..dc5d5a9a02 100644
--- a/src/gui/text/qdistancefield_p.h
+++ b/src/gui/text/qdistancefield_p.h
@@ -95,6 +95,7 @@ public:
     QDistanceField(QFontEngine *fontEngine, glyph_t glyph, bool doubleResolution = false);
     QDistanceField(const QPainterPath &path, glyph_t glyph, bool doubleResolution = false);
     QDistanceField(const QDistanceField &other);
+    QDistanceField &operator=(const QDistanceField &other);
 
     bool isNull() const;