diff --git a/luprex/core/cpp/animqueue.cpp b/luprex/core/cpp/animqueue.cpp
index 9719d3e0..bfe8e128 100644
--- a/luprex/core/cpp/animqueue.cpp
+++ b/luprex/core/cpp/animqueue.cpp
@@ -1,5 +1,6 @@
 #include <limits>
 #include <map>
+#include <cmath>
 #include "luastack.hpp"
 #include "animqueue.hpp"
 #include "streambuffer.hpp"