diff --git a/NPLib/CATS/TCATSPhysics.cxx b/NPLib/CATS/TCATSPhysics.cxx
index 7b803cc26f496d2b2b70d3d63493f402a320d6e4..a3fe518ee72df53dbd53a41226e85fc3c4b89978 100644
--- a/NPLib/CATS/TCATSPhysics.cxx
+++ b/NPLib/CATS/TCATSPhysics.cxx
@@ -25,10 +25,12 @@ using namespace CATS_LOCAL;
 
 //	STL
 #include <cmath>
+#include <algorithm>
 #include <sstream>
 #include <fstream>
 #include <iostream>
 #include <set>
+#include <cstdlib>
 using namespace std;
 //	NPL
 #include "RootInput.h"