diff --git a/openpype/tools/project_manager/project_manager/model.py b/openpype/tools/project_manager/project_manager/model.py
index 871704e13c..b7cb0ec9ed 100644
--- a/openpype/tools/project_manager/project_manager/model.py
+++ b/openpype/tools/project_manager/project_manager/model.py
@@ -264,6 +264,8 @@ class HierarchyModel(QtCore.QAbstractItemModel):
         if not project_doc:
             return
 
+        self.blockSignals(True)
+
         # Create project item
         project_item = ProjectItem(project_doc)
         self.add_item(project_item)
@@ -377,6 +379,8 @@ class HierarchyModel(QtCore.QAbstractItemModel):
 
             self.add_items(task_items, asset_item)
 
+        self.blockSignals(False)
+
         # Emit that project was successfully changed
         self.project_changed.emit()