diff --git a/src/main/java/org/codelibs/fess/app/web/base/FessSearchAction.java b/src/main/java/org/codelibs/fess/app/web/base/FessSearchAction.java
index 042b5432f..64d65df4d 100644
--- a/src/main/java/org/codelibs/fess/app/web/base/FessSearchAction.java
+++ b/src/main/java/org/codelibs/fess/app/web/base/FessSearchAction.java
@@ -34,7 +34,7 @@ import org.codelibs.fess.Constants;
 import org.codelibs.fess.app.web.sso.SsoAction;
 import org.codelibs.fess.entity.SearchRequestParams.SearchRequestType;
 import org.codelibs.fess.helper.LabelTypeHelper;
-import org.codelibs.fess.helper.OpenSearchHelper;
+import org.codelibs.fess.helper.OsddHelper;
 import org.codelibs.fess.helper.PopularWordHelper;
 import org.codelibs.fess.helper.QueryHelper;
 import org.codelibs.fess.helper.RoleQueryHelper;
@@ -77,7 +77,7 @@ public abstract class FessSearchAction extends FessBaseAction {
     protected UserInfoHelper userInfoHelper;
 
     @Resource
-    protected OpenSearchHelper openSearchHelper;
+    protected OsddHelper osddHelper;
 
     @Resource
     protected PopularWordHelper popularWordHelper;
@@ -121,7 +121,7 @@ public abstract class FessSearchAction extends FessBaseAction {
         super.setupHtmlData(runtime);
         systemHelper.setupSearchHtmlData(this, runtime);
 
-        runtime.registerData("osddLink", openSearchHelper.hasOpenSearchFile());
+        runtime.registerData("osddLink", osddHelper.hasOpenSearchFile());
 
         final List<Map<String, String>> labelTypeItems = labelTypeHelper.getLabelTypeItemList(SearchRequestType.SEARCH,
                 request.getLocale() == null ? Locale.ROOT : request.getLocale());
diff --git a/src/main/java/org/codelibs/fess/app/web/osdd/OsddAction.java b/src/main/java/org/codelibs/fess/app/web/osdd/OsddAction.java
index 36bd14766..4d0924745 100644
--- a/src/main/java/org/codelibs/fess/app/web/osdd/OsddAction.java
+++ b/src/main/java/org/codelibs/fess/app/web/osdd/OsddAction.java
@@ -42,7 +42,7 @@ public class OsddAction extends FessSearchAction {
         if (isLoginRequired()) {
             return redirectToLogin();
         }
-        return openSearchHelper.asStream();
+        return osddHelper.asStream();
     }
 
-}
\ No newline at end of file
+}
diff --git a/src/main/java/org/codelibs/fess/helper/OpenSearchHelper.java b/src/main/java/org/codelibs/fess/helper/OsddHelper.java
similarity index 77%
rename from src/main/java/org/codelibs/fess/helper/OpenSearchHelper.java
rename to src/main/java/org/codelibs/fess/helper/OsddHelper.java
index d370add36..a13a16d2b 100644
--- a/src/main/java/org/codelibs/fess/helper/OpenSearchHelper.java
+++ b/src/main/java/org/codelibs/fess/helper/OsddHelper.java
@@ -35,8 +35,8 @@ import org.lastaflute.web.util.LaServletContextUtil;
  * @author shinsuke
  *
  */
-public class OpenSearchHelper {
-    private static final Logger logger = LogManager.getLogger(OpenSearchHelper.class);
+public class OsddHelper {
+    private static final Logger logger = LogManager.getLogger(OsddHelper.class);
 
     protected String osddPath;
 
@@ -51,15 +51,19 @@ public class OpenSearchHelper {
         if (logger.isDebugEnabled()) {
             logger.debug("Initialize {}", this.getClass().getSimpleName());
         }
-        if (StringUtil.isNotBlank(osddPath)) {
-            final String path = LaServletContextUtil.getServletContext().getRealPath(osddPath);
-            osddFile = new File(path);
-            if (!osddFile.isFile()) {
-                osddFile = null;
-                logger.warn("{} was not found.", path);
+        if (Constants.TRUE.equalsIgnoreCase(ComponentUtil.getFessConfig().getOsddLinkEnabled())) {
+            if (StringUtil.isNotBlank(osddPath)) {
+                final String path = LaServletContextUtil.getServletContext().getRealPath(osddPath);
+                osddFile = new File(path);
+                if (!osddFile.isFile()) {
+                    osddFile = null;
+                    logger.warn("{} was not found.", path);
+                }
+            } else {
+                logger.info("OSDD file is not found.");
             }
         } else {
-            logger.info("OSDD file is not found.");
+            logger.debug("OSDD is disabled.");
         }
     }
 
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 c380597fb..e1b0cfca3 100644
--- a/src/main/java/org/codelibs/fess/mylasta/direction/FessConfig.java
+++ b/src/main/java/org/codelibs/fess/mylasta/direction/FessConfig.java
@@ -1112,6 +1112,9 @@ public interface FessConfig extends FessEnv, org.codelibs.fess.mylasta.direction
     /** The key of the configuration. e.g. __TEMPLATE__ */
     String FORM_ADMIN_DEFAULT_TEMPLATE_NAME = "form.admin.default.template.name";
 
+    /** The key of the configuration. e.g. true */
+    String OSDD_LINK_ENABLED = "osdd.link.enabled";
+
     /** The key of the configuration. e.g. admin */
     String AUTHENTICATION_ADMIN_USERS = "authentication.admin.users";
 
@@ -5139,6 +5142,20 @@ public interface FessConfig extends FessEnv, org.codelibs.fess.mylasta.direction
      */
     String getFormAdminDefaultTemplateName();
 
+    /**
+     * Get the value for the key 'osdd.link.enabled'. <br>
+     * The value is, e.g. true <br>
+     * @return The value of found property. (NotNull: if not found, exception but basically no way)
+     */
+    String getOsddLinkEnabled();
+
+    /**
+     * Is the property for the key 'osdd.link.enabled' true? <br>
+     * The value is, e.g. true <br>
+     * @return The determination, true or false. (if not found, exception but basically no way)
+     */
+    boolean isOsddLinkEnabled();
+
     /**
      * Get the value for the key 'authentication.admin.users'. <br>
      * The value is, e.g. admin <br>
@@ -8996,6 +9013,14 @@ public interface FessConfig extends FessEnv, org.codelibs.fess.mylasta.direction
             return get(FessConfig.FORM_ADMIN_DEFAULT_TEMPLATE_NAME);
         }
 
+        public String getOsddLinkEnabled() {
+            return get(FessConfig.OSDD_LINK_ENABLED);
+        }
+
+        public boolean isOsddLinkEnabled() {
+            return is(FessConfig.OSDD_LINK_ENABLED);
+        }
+
         public String getAuthenticationAdminUsers() {
             return get(FessConfig.AUTHENTICATION_ADMIN_USERS);
         }
@@ -10463,6 +10488,7 @@ public interface FessConfig extends FessEnv, org.codelibs.fess.mylasta.direction
             defaultMap.put(FessConfig.FORM_ADMIN_MAX_INPUT_SIZE, "4000");
             defaultMap.put(FessConfig.FORM_ADMIN_LABEL_IN_CONFIG_ENABLED, "false");
             defaultMap.put(FessConfig.FORM_ADMIN_DEFAULT_TEMPLATE_NAME, "__TEMPLATE__");
+            defaultMap.put(FessConfig.OSDD_LINK_ENABLED, "true");
             defaultMap.put(FessConfig.AUTHENTICATION_ADMIN_USERS, "admin");
             defaultMap.put(FessConfig.AUTHENTICATION_ADMIN_ROLES, "admin");
             defaultMap.put(FessConfig.ROLE_SEARCH_DEFAULT_PERMISSIONS, "");
diff --git a/src/main/resources/app.xml b/src/main/resources/app.xml
index 5aeeba322..bdb0d818e 100644
--- a/src/main/resources/app.xml
+++ b/src/main/resources/app.xml
@@ -102,7 +102,7 @@
 			</arg>
 		</postConstruct>
 	</component>
-	<component name="openSearchHelper" class="org.codelibs.fess.helper.OpenSearchHelper">
+	<component name="osddHelper" class="org.codelibs.fess.helper.OsddHelper">
 		<property name="osddPath">"/WEB-INF/orig/open-search/osdd.xml"</property>
 		<property name="encoding">"UTF-8"</property>
 	</component>
diff --git a/src/main/resources/fess_config.properties b/src/main/resources/fess_config.properties
index f7814ff79..fde3c335b 100644
--- a/src/main/resources/fess_config.properties
+++ b/src/main/resources/fess_config.properties
@@ -602,6 +602,7 @@ logging.app.packages=org.codelibs,org.dbflute,org.lastaflute
 form.admin.max.input.size=4000
 form.admin.label.in.config.enabled=false
 form.admin.default.template.name=__TEMPLATE__
+osdd.link.enabled=true
 
 # ----------------------------------------------------------
 #                                                 Permission