diff --git a/src/server/game/Spells/SpellInfo.cpp b/src/server/game/Spells/SpellInfo.cpp
index 6ac0de8da05..ea72cad04f9 100644
--- a/src/server/game/Spells/SpellInfo.cpp
+++ b/src/server/game/Spells/SpellInfo.cpp
@@ -579,7 +579,7 @@ int32 SpellEffectInfo::CalcValue(Unit const* caster, int32 const* bp, Unit const
         }
     }
 
-    return uint32(floor(value + 0.5f));
+    return uint32(std::floor(value + 0.5f));
 }
 
 int32 SpellEffectInfo::CalcBaseValue(int32 value) const