diff --git a/src/platform/qt/DisplayGL.cpp b/src/platform/qt/DisplayGL.cpp
index 350aec1f1..9c0da14d5 100644
--- a/src/platform/qt/DisplayGL.cpp
+++ b/src/platform/qt/DisplayGL.cpp
@@ -18,6 +18,8 @@
 #include <QTimer>
 #include <QWindow>
 
+#include <cmath>
+
 #include <mgba/core/core.h>
 #include <mgba-util/math.h>
 #ifdef BUILD_GL