diff --git a/src/main/java/org/codelibs/fess/mylasta/direction/FessConfig.java b/src/main/java/org/codelibs/fess/mylasta/direction/FessConfig.java
index e9a780497d93883da3ed8c99203be4e3337e60ac..60a65c4a2f9fb10cb4133c25f7eb3189341fbfbb 100644
--- a/src/main/java/org/codelibs/fess/mylasta/direction/FessConfig.java
+++ b/src/main/java/org/codelibs/fess/mylasta/direction/FessConfig.java
@@ -204,7 +204,7 @@ public interface FessConfig extends FessEnv, org.codelibs.fess.mylasta.direction
     /** The key of the configuration. e.g. //LINK[@rel='canonical']/@href */
     String CRAWLER_DOCUMENT_HTML_CANONICAL_XPATH = "crawler.document.html.canonical.xpath";
 
-    /** The key of the configuration. e.g. noscript,script,style */
+    /** The key of the configuration. e.g. noscript,script,style,header,footer,nav */
     String CRAWLER_DOCUMENT_HTML_PRUNED_TAGS = "crawler.document.html.pruned.tags";
 
     /** The key of the configuration. e.g. 200 */
@@ -1683,7 +1683,7 @@ public interface FessConfig extends FessEnv, org.codelibs.fess.mylasta.direction
 
     /**
      * Get the value for the key 'crawler.document.html.pruned.tags'. <br>
-     * The value is, e.g. noscript,script,style <br>
+     * The value is, e.g. noscript,script,style,header,footer,nav <br>
      * @return The value of found property. (NotNull: if not found, exception but basically no way)
      */
     String getCrawlerDocumentHtmlPrunedTags();
diff --git a/src/main/resources/fess_config.properties b/src/main/resources/fess_config.properties
index e8303c02648a89d2c537f7cbf4794e90fb951343..bbc65dd7fc871319669cf786e9e03c8ba2b0e187 100644
--- a/src/main/resources/fess_config.properties
+++ b/src/main/resources/fess_config.properties
@@ -113,7 +113,7 @@ crawler.document.html.content.xpath=//BODY
 crawler.document.html.lang.xpath=//HTML/@lang
 crawler.document.html.digest.xpath=//META[@name='description']/@content
 crawler.document.html.canonical.xpath=//LINK[@rel='canonical']/@href
-crawler.document.html.pruned.tags=noscript,script,style
+crawler.document.html.pruned.tags=noscript,script,style,header,footer,nav
 crawler.document.html.max.digest.length=200
 
 # file