diff --git a/plugins/openscenegraph/io/OSGReader.cpp b/plugins/openscenegraph/io/OSGReader.cpp
index 0c0afbf004..17843d141d 100644
--- a/plugins/openscenegraph/io/OSGReader.cpp
+++ b/plugins/openscenegraph/io/OSGReader.cpp
@@ -50,8 +50,8 @@ struct CollectTriangles
     {
         verts = new osg::Vec3Array();
     }
-#ifdef OSG_VERSION_LESS_THAN
-#if OSG_VERSION_LESS_THAN(3,5,6)
+#ifdef OSG_VERSION_GREATER_THAN
+#if OSG_VERSION_GREATER_THAN(3,2,0)
     inline void operator () (const osg::Vec3& v1, const osg::Vec3& v2, const osg::Vec3& v3, bool treatVertexDataAsTemporary)
 #else
     inline void operator () (const osg::Vec3& v1, const osg::Vec3& v2, const osg::Vec3& v3)