diff --git a/CodeGen/src/IrUtils.cpp b/CodeGen/src/IrUtils.cpp
index 00f274e7..02d19e49 100644
--- a/CodeGen/src/IrUtils.cpp
+++ b/CodeGen/src/IrUtils.cpp
@@ -10,6 +10,9 @@
 #include "lua.h"
 #include "lnumutils.h"
 
+#include <algorithm>
+#include <vector>
+
 #include <limits.h>
 #include <math.h>