diff --git a/xml/gl.xml b/xml/gl.xml
index 4c6b317..00846ff 100644
--- a/xml/gl.xml
+++ b/xml/gl.xml
@@ -2585,6 +2585,20 @@
             <enum name="GL_DEPTH24_STENCIL8_OES"/>
             <enum name="GL_DEPTH32F_STENCIL8"/>
             <enum name="GL_DEPTH32F_STENCIL8_NV"/>
+            <!-- Base internal format: GL_STENCIL_INDEX -->
+            <enum name="GL_STENCIL_INDEX"/>
+            <enum name="GL_STENCIL_INDEX_OES"/>
+            <enum name="GL_STENCIL_INDEX1"/>
+            <enum name="GL_STENCIL_INDEX1_OES"/>
+            <enum name="GL_STENCIL_INDEX1_EXT"/>
+            <enum name="GL_STENCIL_INDEX4"/>
+            <enum name="GL_STENCIL_INDEX4_OES"/>
+            <enum name="GL_STENCIL_INDEX4_EXT"/>
+            <enum name="GL_STENCIL_INDEX8"/>
+            <enum name="GL_STENCIL_INDEX8_OES"/>
+            <enum name="GL_STENCIL_INDEX8_EXT"/>
+            <enum name="GL_STENCIL_INDEX16"/>
+            <enum name="GL_STENCIL_INDEX16_EXT"/>
             <!-- Compressed base internal formats -->
             <enum name="GL_COMPRESSED_RED"/>
             <enum name="GL_COMPRESSED_RG"/>
@@ -2620,6 +2634,83 @@
             <enum name="GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT"/>
             <enum name="GL_COMPRESSED_RGBA_S3TC_DXT5_EXT"/>
             <enum name="GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT"/>
+            <!-- Compressed ASTC internal formats -->
+            <enum name="GL_COMPRESSED_RGBA_ASTC_3x3x3_OES"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_4x3x3_OES"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_4x4"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_4x4_KHR"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_4x4x3_OES"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_4x4x4_OES"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_5x4"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_5x4_KHR"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_5x4x4_OES"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_5x5"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_5x5_KHR"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_5x5x4_OES"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_5x5x5_OES"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_6x5"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_6x5_KHR"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_6x5x5_OES"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_6x6"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_6x6_KHR"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_6x6x5_OES"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_6x6x6_OES"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_8x5"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_8x5_KHR"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_8x6"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_8x6_KHR"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_8x8"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_8x8_KHR"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_10x10"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_10x10_KHR"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_10x5"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_10x5_KHR"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_10x6"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_10x6_KHR"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_10x8"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_10x8_KHR"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_12x10"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_12x10_KHR"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_12x12"/>
+            <enum name="GL_COMPRESSED_RGBA_ASTC_12x12_KHR"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_3x3x3_OES"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x3x3_OES"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x3_OES"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x4_OES"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4x4_OES"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x4_OES"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x5_OES"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5x5_OES"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x5_OES"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x6_OES"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12"/>
+            <enum name="GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR"/>
         </group>
 
         <group name="PixelMap">