diff --git a/sanitize/unsigned/main.cpp b/sanitize/unsigned/main.cpp
index d4ec69f..f980335 100755
--- a/sanitize/unsigned/main.cpp
+++ b/sanitize/unsigned/main.cpp
@@ -1,6 +1,7 @@
 #include <iostream>
 #include <fstream>
 #include <vector>
+#include <cmath>
 #include <filesystem>
 #include "../../Aeu.h"