diff --git a/src/osgPlugins/stl/ReaderWriterSTL.cpp b/src/osgPlugins/stl/ReaderWriterSTL.cpp
index b748492e5..4b2648e95 100644
--- a/src/osgPlugins/stl/ReaderWriterSTL.cpp
+++ b/src/osgPlugins/stl/ReaderWriterSTL.cpp
@@ -43,6 +43,7 @@
 #include <sys/stat.h>
 
 #include <string.h>
+#include <stdint.h>
 
 #include <memory>