diff --git a/ArcFormats/Seraphim/ArcSCN.cs b/ArcFormats/Seraphim/ArcSCN.cs
index 4a15f56e..304c6bac 100644
--- a/ArcFormats/Seraphim/ArcSCN.cs
+++ b/ArcFormats/Seraphim/ArcSCN.cs
@@ -112,7 +112,7 @@ namespace GameRes.Formats.Seraphim
             }
         }
 
-        internal byte[] LzDecompress (IBinaryStream input)
+        internal static byte[] LzDecompress (IBinaryStream input)
         {
             int unpacked_size = input.ReadInt32();
             var data = new byte[unpacked_size];