diff --git a/cmd/genbindings/exceptions.go b/cmd/genbindings/exceptions.go
index ee29d357..d63f6fa9 100644
--- a/cmd/genbindings/exceptions.go
+++ b/cmd/genbindings/exceptions.go
@@ -71,6 +71,9 @@ func CheckComplexity(p CppParameter) error {
 	if p.QPairOf() {
 		return ErrTooComplex // e.g. QGradientStop
 	}
+	if p.QSetOf() {
+		return ErrTooComplex // e.g. QStateMachine
+	}
 	if t, ok := p.QListOf(); ok {
 		if err := CheckComplexity(t); err != nil { // e.g. QGradientStops is a QVector<> (OK) of QGradientStop (not OK)
 			return err
diff --git a/cmd/genbindings/intermediate.go b/cmd/genbindings/intermediate.go
index 2dfd2689..234504a8 100644
--- a/cmd/genbindings/intermediate.go
+++ b/cmd/genbindings/intermediate.go
@@ -39,6 +39,10 @@ func (p CppParameter) QPairOf() bool {
 	return strings.HasPrefix(p.ParameterType, `QPair<`) // TODO support this
 }
 
+func (p CppParameter) QSetOf() bool {
+	return strings.HasPrefix(p.ParameterType, `QSet<`) // TODO support this
+}
+
 func (p CppParameter) IntType() bool {
 	switch p.ParameterType {
 	case "int", "unsigned int", "uint",