diff --git a/designsystems/material3/QskMaterial3SliderSkinlet.cpp b/designsystems/material3/QskMaterial3SliderSkinlet.cpp
index a364326f..d0dfb4bb 100644
--- a/designsystems/material3/QskMaterial3SliderSkinlet.cpp
+++ b/designsystems/material3/QskMaterial3SliderSkinlet.cpp
@@ -9,6 +9,8 @@
 #include <QskVertex.h>
 #include <QskSGNode.h>
 
+#include <qmath.h>
+
 using Q = QskSlider;
 
 static inline bool qskHasOrigin( const QskSlider* )