diff --git a/docs/source/doxygen_layout.xml b/docs/source/doxygen_layout.xml
index aa719f925..1437016ea 100644
--- a/docs/source/doxygen_layout.xml
+++ b/docs/source/doxygen_layout.xml
@@ -208,7 +208,7 @@
       <variables title=""/>
       <signals title=""/>
       <publicslots title=""/>
-      <protectedslots title=""/>l
+      <protectedslots title=""/>
       <privateslots title=""/>
       <events title=""/>
       <properties title=""/>