diff --git a/pmd-apex/src/main/resources/category/apex/categories.properties b/pmd-apex/src/main/resources/category/apex/categories.properties
index 0399dcd41b..dab0624aee 100644
--- a/pmd-apex/src/main/resources/category/apex/categories.properties
+++ b/pmd-apex/src/main/resources/category/apex/categories.properties
@@ -14,5 +14,4 @@ rulesets.filenames=\
 #
 # categories with no rules yet
 #
-#category/apex/documentation.xml
 #category/apex/multithreading.xml