diff --git a/src/main/resources/crawler/rule.xml b/src/main/resources/crawler/rule.xml
index d3a6ccefd..d1d2229f9 100644
--- a/src/main/resources/crawler/rule.xml
+++ b/src/main/resources/crawler/rule.xml
@@ -31,7 +31,7 @@
 		</property>
 		<postConstruct name="addRule">
 			<arg>"url"</arg>
-			<arg>"http[s]?:.*sitemap[^/]*.xml$|http[s]?:.*sitemap[^/]*.gz$|http[s]?:.*sitemap[^/]*.txt$"</arg>
+			<arg>"http[s]?:.*sitemap[^/]*\.xml.*|http[s]?:.*sitemap[^/]*\.gz.*|http[s]?:.*sitemap[^/]*\.txt.*"</arg>
 		</postConstruct>
 	</component>