diff --git a/glslang/MachineIndependent/Constant.cpp b/glslang/MachineIndependent/Constant.cpp
index 152a581e..fdb3c6a8 100644
--- a/glslang/MachineIndependent/Constant.cpp
+++ b/glslang/MachineIndependent/Constant.cpp
@@ -36,6 +36,8 @@
 
 #include "localintermediate.h"
 #include "math.h"
+#include <cfloat>
+#include <cstdlib>
 
 namespace {