diff --git a/doc/82-Changelog.md b/doc/82-Changelog.md
index e50cd29b..0d599eca 100644
--- a/doc/82-Changelog.md
+++ b/doc/82-Changelog.md
@@ -33,6 +33,9 @@ This version hasn't been released yet
 * FEATURE: CIDR notation (network ranges) is supported in such filters (#2757)
 * FIX: synchronizing Service (and -Set) Templates has been fixed (#2745, #2217)
 
+### REST API
+* FIX: Commands give 304 w/o ghost changes for same properties (#2660)
+
 ### Permissions and Restrictions
 * FIX: monitoring-related permission checks have been refactored (#2712)
 * FIX: Hostgroup-Filters have not been applied to Overview tables (#2775)
diff --git a/library/Director/Objects/IcingaArguments.php b/library/Director/Objects/IcingaArguments.php
index e788da8c..e4c23e02 100644
--- a/library/Director/Objects/IcingaArguments.php
+++ b/library/Director/Objects/IcingaArguments.php
@@ -296,6 +296,7 @@ class IcingaArguments implements Iterator, Countable, IcingaConfigRenderer
         $this->arguments = IcingaCommandArgument::loadAll($connection, $query, 'argument_name');
         $this->cloneStored();
         $this->refreshIndex();
+        $this->modified = false;
 
         return $this;
     }
@@ -360,6 +361,7 @@ class IcingaArguments implements Iterator, Countable, IcingaConfigRenderer
         }
         $this->refreshIndex();
         $this->cloneStored();
+        $this->modified = false;
     }
 
     /**
@@ -393,7 +395,9 @@ class IcingaArguments implements Iterator, Countable, IcingaConfigRenderer
             unset($this->arguments[$key]);
         }
 
+        $this->refreshIndex();
         $this->cloneStored();
+        $this->modified = false;
 
         return $this;
     }