diff --git a/Plugins/UniversalEditor.Plugins.FileSystem/Associations/SquareSoftLGP.uexml b/Plugins/UniversalEditor.Plugins.FileSystem/Associations/SquareSoftLGP.uexml
index 2799bfc8..91397461 100644
--- a/Plugins/UniversalEditor.Plugins.FileSystem/Associations/SquareSoftLGP.uexml
+++ b/Plugins/UniversalEditor.Plugins.FileSystem/Associations/SquareSoftLGP.uexml
@@ -3,7 +3,7 @@
 	<Associations>
 		<Association>
 			<Filters>
-				<Filter Title="SquareSoft LGP archive">
+				<Filter Title="SquareSoft LGP archive" ContentType="application/x-squaresoft-lgp">
 					<FileNameFilters>
 						<FileNameFilter>*.lgp</FileNameFilter>
 					</FileNameFilters>