diff --git a/app/Listeners/Model/ModelListener.php b/app/Listeners/Model/ModelListener.php
index 2c3e4a1..7164079 100644
--- a/app/Listeners/Model/ModelListener.php
+++ b/app/Listeners/Model/ModelListener.php
@@ -26,11 +26,11 @@ abstract class ModelListener
     {
 
         $history =  $model->getHistory();
+        $changeMessage = "";
         if ($history !== null) {
             $history->fillFromOrigin($model);
             $history->save();
 
-            $changeMessage = "";
             if ($model instanceof Model) {
                 $before = $model->getOriginal();
                 $after = $model;
@@ -39,14 +39,14 @@ abstract class ModelListener
                     $changeMessage = sprintf("[%s]", $message);
                 }
             }
-            Log::info(sprintf(
-                "モデル変更検知[%s][%s][ID:%s]%s",
-                $model->getModelName(),
-                static::ACTION,
-                data_get($model, ColumnName::ID),
-                $changeMessage
-            ));
         }
+        Log::info(sprintf(
+            "モデル変更検知[%s][%s][ID:%s]%s",
+            $model->getModelName(),
+            static::ACTION,
+            data_get($model, ColumnName::ID),
+            $changeMessage
+        ));
     }
 
     protected function setHandlerIds()