diff --git a/include/osgText/Font b/include/osgText/Font
index 5cda9d13b..4283dc946 100644
--- a/include/osgText/Font
+++ b/include/osgText/Font
@@ -174,7 +174,7 @@ public:
         GlyphTexture();
 
         /** return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs.*/
-        virtual int compare(const StateAttribute& rhs) const;
+        virtual int compare(const osg::StateAttribute& rhs) const;
 
         void setStateSet(osg::StateSet* stateset) { _stateset = stateset; }
         osg::StateSet* getStateSet() { return _stateset; }
diff --git a/src/osgText/Font.cpp b/src/osgText/Font.cpp
index cc9b54c2c..247668b3d 100644
--- a/src/osgText/Font.cpp
+++ b/src/osgText/Font.cpp
@@ -287,7 +287,7 @@ Font::GlyphTexture::~GlyphTexture()
 }
 
 // return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs.
-int Font::GlyphTexture::compare(const StateAttribute& rhs) const
+int Font::GlyphTexture::compare(const osg::StateAttribute& rhs) const
 {
     if (this<&rhs) return -1;
     else if (this>&rhs) return 1;