diff --git a/src/main/java/org/codelibs/fess/mylasta/action/FessLabels.java b/src/main/java/org/codelibs/fess/mylasta/action/FessLabels.java
index da78251c9..1b7f541b1 100644
--- a/src/main/java/org/codelibs/fess/mylasta/action/FessLabels.java
+++ b/src/main/java/org/codelibs/fess/mylasta/action/FessLabels.java
@@ -2883,6 +2883,21 @@ public class FessLabels extends UserMessages {
     /** The key of the message: Your system is out of support. See EOL page. */
     public static final String LABELS_eol_error = "{labels.eol_error}";
 
+    /** The key of the message: Search View */
+    public static final String LABELS_tooltip_search_view = "{labels.tooltip_search_view}";
+
+    /** The key of the message: Run Crawler */
+    public static final String LABELS_tooltip_run_crawler = "{labels.tooltip_run_crawler}";
+
+    /** The key of the message: Forum */
+    public static final String LABELS_tooltip_forum = "{labels.tooltip_forum}";
+
+    /** The key of the message: Help */
+    public static final String LABELS_tooltip_onlinehelp = "{labels.tooltip_onlinehelp}";
+
+    /** The key of the message: Logout */
+    public static final String LABELS_tooltip_logout = "{labels.tooltip_logout}";
+
     /** The key of the message: Advance */
     public static final String LABELS_ADVANCE = "{labels.advance}";
 
diff --git a/src/main/resources/fess_label.properties b/src/main/resources/fess_label.properties
index 7351818ab..2a0f7b18d 100644
--- a/src/main/resources/fess_label.properties
+++ b/src/main/resources/fess_label.properties
@@ -952,6 +952,11 @@ labels.facet_is_not_found=No match
 labels.doc_score=Score:
 labels.development_mode_warning=Running as Development mode. For production use, please install a standalone elasticsearch server.
 labels.eol_error=Your system is out of support. See EOL page.
+labels.tooltip_search_view=Search View
+labels.tooltip_run_crawler=Run Crawler
+labels.tooltip_forum=Forum
+labels.tooltip_onlinehelp=Help
+labels.tooltip_logout=Logout
 labels.advance=Advance
 labels.advance_search_title=Advanced Search
 labels.advance_search_must_queries=All these words
diff --git a/src/main/resources/fess_label_en.properties b/src/main/resources/fess_label_en.properties
index 7351818ab..2a0f7b18d 100644
--- a/src/main/resources/fess_label_en.properties
+++ b/src/main/resources/fess_label_en.properties
@@ -952,6 +952,11 @@ labels.facet_is_not_found=No match
 labels.doc_score=Score:
 labels.development_mode_warning=Running as Development mode. For production use, please install a standalone elasticsearch server.
 labels.eol_error=Your system is out of support. See EOL page.
+labels.tooltip_search_view=Search View
+labels.tooltip_run_crawler=Run Crawler
+labels.tooltip_forum=Forum
+labels.tooltip_onlinehelp=Help
+labels.tooltip_logout=Logout
 labels.advance=Advance
 labels.advance_search_title=Advanced Search
 labels.advance_search_must_queries=All these words
diff --git a/src/main/webapp/WEB-INF/view/common/admin/header.jsp b/src/main/webapp/WEB-INF/view/common/admin/header.jsp
index e5249dffb..32e6de8a7 100644
--- a/src/main/webapp/WEB-INF/view/common/admin/header.jsp
+++ b/src/main/webapp/WEB-INF/view/common/admin/header.jsp
@@ -11,30 +11,35 @@
 	</ul>
 	<ul class="navbar-nav ml-auto">
 		<c:if test="${eoled}">
-		<li class="nav-item" data-toggle="tooltip" data-placement="left" title="<la:message
-			key="labels.eol_error" />">
+		<li class="nav-item" data-toggle="tooltip" data-placement="left"
+			title="<la:message key="labels.eol_error" />">
 			<a class="nav-link active" href="${eolLink}" target="_olh"><em class="fas fa-times-circle text-warning"></em></a></li>
 		</c:if>
 		<c:if test="${developmentMode}">
-			<li class="nav-item" data-toggle="tooltip" data-placement="left" title="<la:message
-				key="labels.development_mode_warning" />">
+			<li class="nav-item" data-toggle="tooltip" data-placement="left"
+				title="<la:message key="labels.development_mode_warning" />">
 				<a class="nav-link active" href="${installationLink}" target="_olh"><em class="fa fa-exclamation-triangle text-warning"></em></a></li>
 		</c:if>
-		<li class="nav-item" ><a class="nav-link" href="${contextPath}/"><em class="fa fa-list-alt"></em></a></li>
+		<li class="nav-item" data-toggle="tooltip" data-placement="left"
+			title="<la:message key="labels.tooltip_search_view" />"><a class="nav-link" href="${contextPath}/"><em class="fa fa-list-alt"></em></a></li>
 		<c:if test="${fe:permission('admin-scheduler')}">
-			<li class="nav-item" ><a class="nav-link"
+			<li class="nav-item" data-toggle="tooltip" data-placement="left"
+				title="<la:message key="labels.tooltip_run_crawler" />"><a class="nav-link"
 									 href="${contextPath}/admin/scheduler/details/4/default_crawler"><em
 					class="fa fa-play-circle"></em></a></li>
 		</c:if>
 		<c:if test="${not empty forumLink}">
-			<li class="nav-item" ><a class="nav-link" href="${forumLink}" target="_forum"><em
+			<li class="nav-item" data-toggle="tooltip" data-placement="left"
+				title="<la:message key="labels.tooltip_forum" />"><a class="nav-link" href="${forumLink}" target="_forum"><em
 					class="fas fa-comments"></em></a></li>
 		</c:if>
 		<c:if test="${not empty helpLink}">
-			<li class="nav-item" ><a class="nav-link" href="${helpLink}" target="_olh"><em
+			<li class="nav-item" data-toggle="tooltip" data-placement="left"
+				title="<la:message key="labels.tooltip_onlinehelp" />"><a class="nav-link" href="${helpLink}" target="_olh"><em
 					class="fa fa-question-circle"></em></a></li>
 		</c:if>
-		<li class="nav-item" ><a class="nav-link" href="${contextPath}/logout"><em
+		<li class="nav-item" data-toggle="tooltip" data-placement="left"
+			title="<la:message key="labels.tooltip_logout" />"><a class="nav-link" href="${contextPath}/logout"><em
 				class="fa fa-sign-out-alt"></em></a></li>
 	</ul>
 </nav>