diff --git a/optimizer-fix-controls.md b/optimizer-fix-controls.md
index 87d8e4d5184f4..49ef9ab7d4ad6 100644
--- a/optimizer-fix-controls.md
+++ b/optimizer-fix-controls.md
@@ -77,6 +77,12 @@ SET SESSION tidb_opt_fix_control = '44262:ON,44389:ON';
 - Possible values: `ON`, `OFF`
 - This variable controls whether to allow the Plan Cache to cache plans accessing generated columns.
 
+### [`46177`](https://github.com/pingcap/tidb/issues/46177) <span class="version-mark">New in v7.5.0</span>
+
+- Default value: `ON`
+- Possible values: `ON`, `OFF`
+- This variable controls whether to explore enforced plans during optimization if it has already found an unenforced plan.
+
 ### [`47400`](https://github.com/pingcap/tidb/issues/47400) <span class="version-mark">New in v8.4.0</span>
 
 - Default value: `ON`