diff --git a/glsl_parser_extras.h b/glsl_parser_extras.h
index 932c12d8410..1c972623c20 100644
--- a/glsl_parser_extras.h
+++ b/glsl_parser_extras.h
@@ -25,6 +25,7 @@
 #ifndef GLSL_PARSER_EXTRAS_H
 #define GLSL_PARSER_EXTRAS_H
 
+#include <cstdlib>
 #include "main/simple_list.h"
 
 enum _mesa_glsl_parser_targets {