diff --git a/include/osg/GLExtensions b/include/osg/GLExtensions
index 6ee9ca1a5..66a013445 100644
--- a/include/osg/GLExtensions
+++ b/include/osg/GLExtensions
@@ -29,6 +29,7 @@
 #include <osg/Vec2ui>
 #include <osg/Vec3ui>
 #include <osg/Vec4ui>
+#include <osg/Plane>
 #include <osg/MatrixTemplate>
 #include <osg/Matrixd>
 #include <osg/Matrixf>
@@ -761,6 +762,8 @@ class OSG_EXPORT GLExtensions : public osg::Referenced
         inline void glUniform(GLint location, const osg::Vec3d& value) const { glUniform3dv(location, 1, value.ptr()); }
         inline void glUniform(GLint location, const osg::Vec4d& value) const { glUniform4dv(location, 1, value.ptr()); }
 
+        inline void glUniform(GLint location, const osg::Plane& value) const { glUniform4dv(location, 1, value.ptr()); }
+
         inline void glUniform(GLint location, const osg::Matrix2& value) const { glUniformMatrix2fv(location, 1, GL_FALSE, value.ptr()); }
         inline void glUniform(GLint location, const osg::Matrix2x3& value) const { glUniformMatrix2x3fv(location, 1, GL_FALSE, value.ptr()); }
         inline void glUniform(GLint location, const osg::Matrix2x4& value) const { glUniformMatrix2x4fv(location, 1, GL_FALSE, value.ptr()); }