diff --git a/src/main/java/org/codelibs/fess/app/pager/FailureUrlPager.java b/src/main/java/org/codelibs/fess/app/pager/FailureUrlPager.java
index 09262b746..9f7b50199 100644
--- a/src/main/java/org/codelibs/fess/app/pager/FailureUrlPager.java
+++ b/src/main/java/org/codelibs/fess/app/pager/FailureUrlPager.java
@@ -77,6 +77,7 @@ public class FailureUrlPager implements Serializable {
         lastAccessTime = null;
         errorCountMin = null;
         errorCountMax = null;
+        errorName = null;
 
     }