diff --git a/basis/opengl/gl/gl.factor b/basis/opengl/gl/gl.factor
index 412405c852..b59ab116e8 100644
--- a/basis/opengl/gl/gl.factor
+++ b/basis/opengl/gl/gl.factor
@@ -2251,3 +2251,16 @@ CONSTANT: GL_LUMINANCE_ALPHA_INTEGER_EXT  HEX: 8D9D
 GL-FUNCTION: void glClearColorIiEXT { } ( GLint r, GLint g, GLint b, GLint a ) ;
 GL-FUNCTION: void glClearColorIuiEXT { } ( GLuint r, GLuint g, GLuint b, GLuint a ) ;
 
+! GL_EXT_texture_compression_s3tc
+
+CONSTANT: GL_COMPRESSED_RGB_S3TC_DXT1_EXT  HEX: 83F0
+CONSTANT: GL_COMPRESSED_RGBA_S3TC_DXT1_EXT HEX: 83F1
+CONSTANT: GL_COMPRESSED_RGBA_S3TC_DXT3_EXT HEX: 83F2
+CONSTANT: GL_COMPRESSED_RGBA_S3TC_DXT5_EXT HEX: 83F3
+
+! GL_EXT_texture_compression_latc
+
+CONSTANT: GL_COMPRESSED_LUMINANCE_LATC1_EXT              HEX: 8C70
+CONSTANT: GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT       HEX: 8C71
+CONSTANT: GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT        HEX: 8C72
+CONSTANT: GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT HEX: 8C73