diff --git a/src/gui/opengl/qopenglshaderprogram.h b/src/gui/opengl/qopenglshaderprogram.h
index 5ca2ead45e..f68b499787 100644
--- a/src/gui/opengl/qopenglshaderprogram.h
+++ b/src/gui/opengl/qopenglshaderprogram.h
@@ -102,14 +102,6 @@ Q_DECLARE_OPERATORS_FOR_FLAGS(QOpenGLShader::ShaderType)
 
 class QOpenGLShaderProgramPrivate;
 
-#ifndef GL_EXT_geometry_shader4
-#  define GL_LINES_ADJACENCY_EXT 0xA
-#  define GL_LINE_STRIP_ADJACENCY_EXT 0xB
-#  define GL_TRIANGLES_ADJACENCY_EXT 0xC
-#  define GL_TRIANGLE_STRIP_ADJACENCY_EXT 0xD
-#endif
-
-
 class Q_GUI_EXPORT QOpenGLShaderProgram : public QObject
 {
     Q_OBJECT
diff --git a/src/opengl/qglshaderprogram.h b/src/opengl/qglshaderprogram.h
index 9b0cda6170..ec317f7956 100644
--- a/src/opengl/qglshaderprogram.h
+++ b/src/opengl/qglshaderprogram.h
@@ -100,14 +100,6 @@ Q_DECLARE_OPERATORS_FOR_FLAGS(QGLShader::ShaderType)
 
 class QGLShaderProgramPrivate;
 
-#ifndef GL_EXT_geometry_shader4
-#  define GL_LINES_ADJACENCY_EXT 0xA
-#  define GL_LINE_STRIP_ADJACENCY_EXT 0xB
-#  define GL_TRIANGLES_ADJACENCY_EXT 0xC
-#  define GL_TRIANGLE_STRIP_ADJACENCY_EXT 0xD
-#endif
-
-
 class Q_OPENGL_EXPORT QGLShaderProgram : public QObject
 {
     Q_OBJECT