diff --git a/layouts/layoutitem.cpp b/layouts/layoutitem.cpp
index ec1fb121f..bcc2cc1a5 100644
--- a/layouts/layoutitem.cpp
+++ b/layouts/layoutitem.cpp
@@ -70,6 +70,7 @@ bool LayoutItem::hasHeightForWidth() const
 
 qreal LayoutItem::heightForWidth(qreal w) const
 {
+    Q_UNUSED (w);
     return 0.0;
 }
 
@@ -80,6 +81,7 @@ bool LayoutItem::hasWidthForHeight() const
 
 qreal LayoutItem::widthForHeight(qreal h) const
 {
+    Q_UNUSED (h);
     return 0.0;
 }
 
diff --git a/layouts/nodelayout.cpp b/layouts/nodelayout.cpp
index cc2605bfe..93148b64e 100644
--- a/layouts/nodelayout.cpp
+++ b/layouts/nodelayout.cpp
@@ -81,6 +81,8 @@ public:
 
     QPointF calculatePosition(const NodeCoordinate & coo, const QRectF & parentGeometry) const
     {
+        Q_UNUSED( parentGeometry );
+
         return QPointF(
             calculateXPosition(coo, geometry),
             calculateYPosition(coo, geometry)
diff --git a/widgets/label.cpp b/widgets/label.cpp
index 64bbb027a..341240d33 100644
--- a/widgets/label.cpp
+++ b/widgets/label.cpp
@@ -45,6 +45,7 @@ bool Label::hasHeightForWidth() const
 
 qreal Label::heightForWidth(qreal w) const
 {
+    Q_UNUSED( w );
     //FIXME: this looks a bit odd?
     QFontMetricsF m(d->textFont);
     //return m.boundingRect(QRectF(0, 0, w, 9999), d->alignment | Qt::TextWordWrap, d->text).height();
diff --git a/widgets/lineedit.cpp b/widgets/lineedit.cpp
index 88e5fb686..b70231e2b 100644
--- a/widgets/lineedit.cpp
+++ b/widgets/lineedit.cpp
@@ -170,6 +170,7 @@ bool LineEdit::hasWidthForHeight() const
 
 qreal LineEdit::widthForHeight(qreal h) const
 {
+    Q_UNUSED(h);
     return 0;
 }