diff --git a/module/project/model.php b/module/project/model.php
index e0c0e7ac61..9076a4abde 100644
--- a/module/project/model.php
+++ b/module/project/model.php
@@ -907,7 +907,7 @@ class projectModel extends model
             ->autoCheck()
             ->batchcheck($requiredFields, 'notempty')
             ->checkIF(!empty($project->name), 'name', 'unique', "`type`='project' and `parent` = $project->parent and `model` = '{$project->model}'")
-            ->checkIF(!empty($project->code), 'code', 'unique', "`type`='project' and `model` = '{$project->code}'")
+            ->checkIF(!empty($project->code), 'code', 'unique', "`type`='project' and `model` = '{$project->model}'")
             ->checkIF($project->end != '', 'end', 'gt', $project->begin)
             ->exec();
 
@@ -1139,8 +1139,8 @@ class projectModel extends model
             ->checkIF($project->begin != '', 'begin', 'date')
             ->checkIF($project->end != '', 'end', 'date')
             ->checkIF($project->end != '', 'end', 'gt', $project->begin)
-            ->checkIF(!empty($project->name), 'name', 'unique', "id != $projectID and `type` = 'project' and `parent` = $project->parent")
-            ->checkIF(!empty($project->code), 'code', 'unique', "id != $projectID and `type` = 'project'")
+            ->checkIF(!empty($project->name), 'name', 'unique', "id != $projectID and `type` = 'project' and `parent` = $project->parent and `model` = '{$project->model}'")
+            ->checkIF(!empty($project->code), 'code', 'unique', "id != $projectID and `type` = 'project' and `model` = '{$project->model}'")
             ->where('id')->eq($projectID)
             ->exec();
 
@@ -1280,8 +1280,8 @@ class projectModel extends model
                 ->checkIF($project->begin != '', 'begin', 'date')
                 ->checkIF($project->end != '', 'end', 'date')
                 ->checkIF($project->end != '', 'end', 'gt', $project->begin)
-                ->checkIF(!empty($project->name), 'name', 'unique', "id != $projectID and `type`='project' and `parent` = $parentID")
-                ->checkIF(!empty($project->code), 'code', 'unique', "id != $projectID and `type`='project'")
+                ->checkIF(!empty($project->name), 'name', 'unique', "id != $projectID and `type`='project' and `parent` = $parentID and `model` = '{$project->model}'")
+                ->checkIF(!empty($project->code), 'code', 'unique', "id != $projectID and `type`='project' and `model` = '{$project->model}'")
                 ->where('id')->eq($projectID)
                 ->exec();