diff --git a/library/Icingadb/Model/CheckcommandArgument.php b/library/Icingadb/Model/CheckcommandArgument.php
index d59d4e3d2..3fb4ad5a3 100644
--- a/library/Icingadb/Model/CheckcommandArgument.php
+++ b/library/Icingadb/Model/CheckcommandArgument.php
@@ -70,6 +70,6 @@ public function createBehaviors(Behaviors $behaviors)
     public function createRelations(Relations $relations)
     {
         $relations->belongsTo('environment', Environment::class);
-        $relations->belongsTo('checkcommand', CheckCommand::class);
+        $relations->belongsTo('checkcommand', Checkcommand::class);
     }
 }
diff --git a/library/Icingadb/Model/CheckcommandCustomvar.php b/library/Icingadb/Model/CheckcommandCustomvar.php
index d55506e85..0a834b58c 100644
--- a/library/Icingadb/Model/CheckcommandCustomvar.php
+++ b/library/Icingadb/Model/CheckcommandCustomvar.php
@@ -43,7 +43,7 @@ public function createBehaviors(Behaviors $behaviors)
     public function createRelations(Relations $relations)
     {
         $relations->belongsTo('environment', Environment::class);
-        $relations->belongsTo('checkcommand', CheckCommand::class);
+        $relations->belongsTo('checkcommand', Checkcommand::class);
         $relations->belongsTo('customvar', Customvar::class);
         $relations->belongsTo('customvar_flat', CustomvarFlat::class)
             ->setCandidateKey('customvar_id')
diff --git a/library/Icingadb/Model/CheckcommandEnvvar.php b/library/Icingadb/Model/CheckcommandEnvvar.php
index cbcb92696..517a45fc5 100644
--- a/library/Icingadb/Model/CheckcommandEnvvar.php
+++ b/library/Icingadb/Model/CheckcommandEnvvar.php
@@ -56,6 +56,6 @@ public function createBehaviors(Behaviors $behaviors)
     public function createRelations(Relations $relations)
     {
         $relations->belongsTo('environment', Environment::class);
-        $relations->belongsTo('checkcommand', CheckCommand::class);
+        $relations->belongsTo('checkcommand', Checkcommand::class);
     }
 }