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diff --git a/doc/development/reference_processing.md b/doc/development/reference_processing.md
index c6c629f3314..ef1f2f5269c 100644
--- a/doc/development/reference_processing.md
+++ b/doc/development/reference_processing.md
@@ -43,7 +43,7 @@ Subclasses of `AbstractReferenceFilter` generally do not override `#call`; inste
a minimum implementation of `AbstractReferenceFilter` should define:
- `.reference_type`: The type of domain object.
-
+
This is usually a keyword, and is used to set the `data-reference-type` attribute
on the generated link, and is an important part of the interaction with the
corresponding `ReferenceParser` (see below).