diff --git a/CHANGELOG-Japanese.md b/CHANGELOG-Japanese.md
index 43c343a0..93d007f2 100644
--- a/CHANGELOG-Japanese.md
+++ b/CHANGELOG-Japanese.md
@@ -13,7 +13,7 @@
 
 **バグ修正:**
 
-- XXX
+- ログオン情報の要約オプションを追加した場合に、Hayabusaがクラッシュしていたのを修正した。 (#674) (@hitenkoku)
 
 ## v1.5.1 [2022/08/20]
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 00cae0f8..e29f2e03 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,7 +13,7 @@
 
 **Bug Fixes:**
 
-- XXX
+- Hayabusa would crash with `-L` option (logon summary option). (#674) (@hitenkoku)
 
 ## v1.5.1 [2022/08/20]
 
diff --git a/src/timeline/statistics.rs b/src/timeline/statistics.rs
index f2debc94..6e6982e1 100644
--- a/src/timeline/statistics.rs
+++ b/src/timeline/statistics.rs
@@ -110,8 +110,21 @@ impl EventStatistics {
             if evtid.is_none() {
                 continue;
             }
+            let idnum: i64 = if evtid.unwrap().is_number() {
+                evtid.unwrap().as_i64().unwrap()
+            } else {
+                evtid
+                    .unwrap()
+                    .as_str()
+                    .unwrap()
+                    .parse::<i64>()
+                    .unwrap_or_default()
+            };
+            if !(idnum == 4624 || idnum == 4625) {
+                continue;
+            }
+
             let username = utils::get_event_value("TargetUserName", &record.record);
-            let idnum = evtid.unwrap().as_i64().unwrap();
             let countlist: [usize; 2] = [0, 0];
             if idnum == 4624 {
                 let count: &mut [usize; 2] = self