diff --git a/src/Enum.hpp b/src/Enum.hpp
index 8eae97c..500ccae 100644
--- a/src/Enum.hpp
+++ b/src/Enum.hpp
@@ -1,4 +1,5 @@
 #include <algorithm>
+#include <cmath>
 #include <sstream>
 #include <stdexcept>
 #include <vector>