diff --git a/CodeWalker/Forms/ModelLightForm.cs b/CodeWalker/Forms/ModelLightForm.cs
index 79edd2b..7bc33a6 100644
--- a/CodeWalker/Forms/ModelLightForm.cs
+++ b/CodeWalker/Forms/ModelLightForm.cs
@@ -1057,6 +1057,7 @@ namespace CodeWalker.Forms
             if (selectedLight.Flags != v)
             {
                 selectedLight.Flags = v;
+                UpdateLightParams();
             }
             populatingui = true;
             UpdateFlagsCheckBoxes();
@@ -1071,6 +1072,7 @@ namespace CodeWalker.Forms
             if (selectedLight.Flags != v)
             {
                 selectedLight.Flags = v;
+                UpdateLightParams();
             }
             populatingui = true;
             FlagsTextBox.Text = selectedLight.Flags.ToString();