diff --git a/opengl/include/GLES/glext.h b/opengl/include/GLES/glext.h
index a5b3ead..65ab5e4 100644
--- a/opengl/include/GLES/glext.h
+++ b/opengl/include/GLES/glext.h
@@ -211,9 +211,12 @@
 #define GL_VERTEX_ARRAY_BINDING_OES                             0x85B5
 #endif
 
-/* GL_OES_texture_external */
-#ifndef GL_TEXTURE_EXTERNAL_OES
+/* GL_OES_EGL_image_external */
+#ifndef GL_OES_EGL_image_external
 #define GL_TEXTURE_EXTERNAL_OES                                 0x8D65
+#define GL_SAMPLER_EXTERNAL_OES                                 0x8D66
+#define GL_TEXTURE_BINDING_EXTERNAL_OES                         0x8D67
+#define GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES                     0x8D68
 #endif
 
 /*------------------------------------------------------------------------*
@@ -782,9 +785,9 @@
 typedef GLboolean (GL_APIENTRYP PFNGLISVERTEXARRAYOESPROC) (GLuint array);
 #endif
 
-/* GL_OES_texture_external */
-#ifndef GL_OES_texture_external
-#define GL_OES_texture_external 1
+/* GL_OES_EGL_image_external */
+#ifndef GL_OES_EGL_image_external
+#define GL_OES_EGL_image_external 1
 #endif
 
 /*------------------------------------------------------------------------*