diff --git a/GarConvert.cs b/GarConvert.cs
index 99a99073..b0f57ef6 100644
--- a/GarConvert.cs
+++ b/GarConvert.cs
@@ -199,7 +199,7 @@ namespace GARbro.GUI
             string target_name = Path.ChangeExtension (filename, target_ext);
             using (var file = File.OpenRead (filename))
             {
-                var image = ImageFormat.Read (file);
+                var image = ImageFormat.Read (filename, file);
                 if (null == image)
                     return;
                 try
diff --git a/GarExtract.cs b/GarExtract.cs
index 617546bb..65de5744 100644
--- a/GarExtract.cs
+++ b/GarExtract.cs
@@ -294,7 +294,7 @@ namespace GARbro.GUI
         {
             using (var file = arc.OpenSeekableEntry (entry))
             {
-                var src_format = ImageFormat.FindFormat (file);
+                var src_format = ImageFormat.FindFormat (file, entry.Name);
                 if (null == src_format)
                     throw new InvalidFormatException (string.Format ("{1}: {0}", guiStrings.MsgUnableInterpretImage, entry.Name));
                 file.Position = 0;
diff --git a/ImagePreview.cs b/ImagePreview.cs
index d4723ca7..af776547 100644
--- a/ImagePreview.cs
+++ b/ImagePreview.cs
@@ -243,7 +243,7 @@ namespace GARbro.GUI
             {
                 using (var file = OpenPreviewStream (preview))
                 {
-                    var data = ImageFormat.Read (file);
+                    var data = ImageFormat.Read (preview.Name, file);
                     if (null != data)
                         SetPreviewImage (preview, data.Bitmap);
                     else