diff --git a/hwe/sammo/Command/General/che_건국.php b/hwe/sammo/Command/General/che_건국.php
index 431e198c..b24f7da1 100644
--- a/hwe/sammo/Command/General/che_건국.php
+++ b/hwe/sammo/Command/General/che_건국.php
@@ -183,7 +183,7 @@ class che_건국 extends Command\GeneralCommand
         $general->addExperience($exp);
         $general->addDedication($ded);
 
-        $aux = Json::decode($this->nation['aux']) ?? [];
+        $aux = $this->nation['aux'];
         $aux['can_국기변경'] = 1;
 
         $db->update('city', [
diff --git a/hwe/sammo/Command/General/che_무작위건국.php b/hwe/sammo/Command/General/che_무작위건국.php
index 1020ff62..8e2466b0 100644
--- a/hwe/sammo/Command/General/che_무작위건국.php
+++ b/hwe/sammo/Command/General/che_무작위건국.php
@@ -194,7 +194,7 @@ class che_무작위건국 extends Command\GeneralCommand
         $general->addExperience($exp);
         $general->addDedication($ded);
 
-        $aux = Json::decode($this->nation['aux']) ?? [];
+        $aux = $this->nation['aux'];
         $aux['can_국기변경'] = 1;
         $aux['can_무작위수도이전'] = 1;
 
diff --git a/hwe/sammo/Command/General/cr_건국.php b/hwe/sammo/Command/General/cr_건국.php
index 392971bf..e8536ced 100644
--- a/hwe/sammo/Command/General/cr_건국.php
+++ b/hwe/sammo/Command/General/cr_건국.php
@@ -180,7 +180,7 @@ class cr_건국 extends Command\GeneralCommand
         $general->addExperience($exp);
         $general->addDedication($ded);
 
-        $aux = Json::decode($this->nation['aux']) ?? [];
+        $aux = $this->nation['aux'];
         $aux['can_국기변경'] = 1;
 
         $db->update('city', [
diff --git a/hwe/sammo/Command/Nation/che_국기변경.php b/hwe/sammo/Command/Nation/che_국기변경.php
index 2878798d..6fcdbf64 100644
--- a/hwe/sammo/Command/Nation/che_국기변경.php
+++ b/hwe/sammo/Command/Nation/che_국기변경.php
@@ -122,7 +122,7 @@ class che_국기변경 extends Command\NationCommand
         $josaYi = JosaUtil::pick($generalName, '이');
         $josaYiNation = JosaUtil::pick($nationName, '이');
 
-        $aux = Json::decode($this->nation['aux']);
+        $aux = $this->nation['aux'];
         $aux["can_{$actionName}"] = 0;
 
         $db->update('nation', [
diff --git a/hwe/sammo/Command/Nation/che_국호변경.php b/hwe/sammo/Command/Nation/che_국호변경.php
index 05c5543e..1aaa9970 100644
--- a/hwe/sammo/Command/Nation/che_국호변경.php
+++ b/hwe/sammo/Command/Nation/che_국호변경.php
@@ -140,7 +140,7 @@ class che_국호변경 extends Command\NationCommand
         $josaYi = JosaUtil::pick($generalName, '이');
         $josaYiNation = JosaUtil::pick($nationName, '이');
 
-        $aux = Json::decode($this->nation['aux']);
+        $aux = $this->nation['aux'];
         $aux["can_{$actionName}"] = 0;
 
         $db->update('nation', [
diff --git a/hwe/sammo/Command/Nation/che_무작위수도이전.php b/hwe/sammo/Command/Nation/che_무작위수도이전.php
index aff9d423..1388dd24 100644
--- a/hwe/sammo/Command/Nation/che_무작위수도이전.php
+++ b/hwe/sammo/Command/Nation/che_무작위수도이전.php
@@ -119,7 +119,7 @@ class che_무작위수도이전 extends Command\NationCommand
         $josaYi = JosaUtil::pick($generalName, '이');
         $josaYiNation = JosaUtil::pick($nationName, '이');
 
-        $aux = Json::decode($this->nation['aux']);
+        $aux = $this->nation['aux'];
         $aux["can_무작위수도이전"] -= 1;
 
         $db->update('city', [