diff --git a/pcbnew/dialogs/dialog_non_copper_zones_properties.cpp b/pcbnew/dialogs/dialog_non_copper_zones_properties.cpp
index 7316752f6a..da432c6b78 100644
--- a/pcbnew/dialogs/dialog_non_copper_zones_properties.cpp
+++ b/pcbnew/dialogs/dialog_non_copper_zones_properties.cpp
@@ -74,6 +74,8 @@ DIALOG_NON_COPPER_ZONES_EDITOR::DIALOG_NON_COPPER_ZONES_EDITOR( PCB_BASE_FRAME*
     m_settings = *aSettings;
     m_settings.SetupLayersList( m_layers, m_parent, false );
 
+    m_sdbSizerButtonsOK->SetDefault();
+
     FinishDialogSettings();
 }