diff --git a/src/xdocs/config_naming.xml b/src/xdocs/config_naming.xml
index 47517312b..fce538abe 100644
--- a/src/xdocs/config_naming.xml
+++ b/src/xdocs/config_naming.xml
@@ -61,7 +61,7 @@
| allowedAbbreviations |
list of abbreviations that must be skipped for checking.
Abbreviations should be separated by comma, no spaces are allowed. |
- stringSet |
+ String Set |
null |