diff --git a/src/server/game/Entities/Object/ObjectPosSelector.h b/src/server/game/Entities/Object/ObjectPosSelector.h
index e847c176a..a08b0f7a1 100644
--- a/src/server/game/Entities/Object/ObjectPosSelector.h
+++ b/src/server/game/Entities/Object/ObjectPosSelector.h
@@ -19,6 +19,7 @@
 #define _OBJECT_POS_SELECTOR_H
 
 #include "Define.h"
+#include <cmath>
 #include <map>
 #include <math.h>