diff --git a/src/docbkx/namespace-config.xml b/src/docbkx/namespace-config.xml
index d9ad2f7104..50c40493f6 100644
--- a/src/docbkx/namespace-config.xml
+++ b/src/docbkx/namespace-config.xml
@@ -552,8 +552,8 @@
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You can also use the after or before attribtues if you want your filter
- to be inserted before or after another filter in the stack. The names "FIRST" and "LAST" can be used to indicate
- that you want your filter to appear before or after the entire stack, respectively.
+ to be inserted before or after another filter in the stack. The names "FIRST" and "LAST" can be used with the
+ position attribute to indicate that you want your filter to appear before or after the entire stack, respectively.
Avoiding filter position conflicts