diff --git a/doc/custom-doxygen/mainpage.md b/doc/custom-doxygen/mainpage.md
index f0b5638f74d..2a0e3f9a163 100644
--- a/doc/custom-doxygen/mainpage.md
+++ b/doc/custom-doxygen/mainpage.md
@@ -1,4 +1,4 @@
-# API Documentation   {#index}
+# API Documentation
 
 ## Introduction