fixed a typo
diff --git a/include/GL/glext.h b/include/GL/glext.h
index acb2176..a83a449 100644
--- a/include/GL/glext.h
+++ b/include/GL/glext.h
@@ -46,7 +46,7 @@
  *   6. Brian Paul, 5 Apr 2000
  *      Added GL_ARB_multisample tokens, added GL_ARB_texture_env_add
  *   7. Brian Paul, 7 Apr 2000
- *      Minor clean-ups, temporaty token values for GL_SGIS_pixel_texture
+ *      Minor clean-ups, temporary token values for GL_SGIS_pixel_texture
  */
 #define GL_GLEXT_VERSION_EXT 7