diff --git a/structuredefinitions/Extension-UKCore-DiagnosticReportMedia.xml b/structuredefinitions/Extension-UKCore-DiagnosticReportMedia.xml
index d73c28e5..3ce03003 100644
--- a/structuredefinitions/Extension-UKCore-DiagnosticReportMedia.xml
+++ b/structuredefinitions/Extension-UKCore-DiagnosticReportMedia.xml
@@ -66,7 +66,7 @@
     <element id="Extension.extension:link">
       <path value="Extension.extension" />
       <sliceName value="link" />
-      <short value="Reference to the image or data source" />
+      <short value="Reference to the image or data source." />
       <definition value="Reference to the image or data source." />
       <min value="1" />
     </element>