Fix link to GL_EXT_texture_query_lod
diff --git a/extensions/esext.php b/extensions/esext.php
index b61932d..07650c5 100644
--- a/extensions/esext.php
+++ b/extensions/esext.php
@@ -643,7 +643,7 @@
 </li>
 <li value=309><a href="extensions/EXT/EXT_depth_clamp.txt">GL_EXT_depth_clamp</a>
 </li>
-<li value=310><a href="extensions/EXT/EXT_texture_query_lod">GL_EXT_texture_query_lod</a>
+<li value=310><a href="extensions/EXT/EXT_texture_query_lod.txt">GL_EXT_texture_query_lod</a>
 </li>
 <li value=311><a href="extensions/NV/NV_scissor_exclusive.txt">GL_NV_scissor_exclusive</a>
 </li>