diff --git a/src/openrct2/world/EntityTweener.cpp b/src/openrct2/world/EntityTweener.cpp
index 21de93d9a3..aa77dd5a05 100644
--- a/src/openrct2/world/EntityTweener.cpp
+++ b/src/openrct2/world/EntityTweener.cpp
@@ -13,6 +13,8 @@
 #include "EntityList.h"
 #include "Sprite.h"
 
+#include <cmath>
+
 void EntityTweener::PopulateEntities()
 {
     for (auto ent : EntityList<Guest>())