diff --git a/src/osgPlugins/jp2/ReaderWriterJP2.cpp b/src/osgPlugins/jp2/ReaderWriterJP2.cpp
index 7b3c6cc..d949c2c 100644
--- a/src/osgPlugins/jp2/ReaderWriterJP2.cpp
+++ b/src/osgPlugins/jp2/ReaderWriterJP2.cpp
@@ -15,6 +15,10 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#ifndef SIZE_MAX
+#define SIZE_MAX ((size_t)(-1))
+#endif
+
 extern "C"
 {
     #include <jasper/jasper.h>