diff --git a/openpype/tools/project_manager/project_manager/delegates.py b/openpype/tools/project_manager/project_manager/delegates.py
index c2b2d07b58..4c6f7f70eb 100644
--- a/openpype/tools/project_manager/project_manager/delegates.py
+++ b/openpype/tools/project_manager/project_manager/delegates.py
@@ -82,6 +82,7 @@ class NumberDelegate(QtWidgets.QStyledItemDelegate):
         editor.setObjectName("NumberEditor")
         editor.setMinimum(self.minimum)
         editor.setMaximum(self.maximum)
+        editor.setButtonSymbols(QtWidgets.QSpinBox.NoButtons)
 
         value = index.data(QtCore.Qt.EditRole)
         if value is not None: