diff --git a/include/osgText/Glyph b/include/osgText/Glyph
index c2fe58299..15d6b45f2 100644
--- a/include/osgText/Glyph
+++ b/include/osgText/Glyph
@@ -28,7 +28,7 @@
 #include <osgText/KerningType>
 #include <osgText/Style>
 
-#include <OpenThreads/Mutex>
+#include <OpenThreads/ReentrantMutex>
 
 namespace osgText {
 
@@ -127,7 +127,7 @@ protected:
     typedef std::vector< osg::ref_ptr<TextureInfo> > TextureInfoList;
     TextureInfoList             _textureInfoList;
 
-    mutable OpenThreads::Mutex  _textureInfoListMutex;
+    mutable OpenThreads::ReentrantMutex  _textureInfoListMutex;
 };
 
 class OSGTEXT_EXPORT GlyphGeometry : public osg::Referenced