diff -r 33200fc645f6 coders/mvg.c
--- a/coders/mvg.c	Sat Nov 07 14:49:16 2015 -0600
+++ b/coders/mvg.c	Sat May 07 20:11:54 2016 -0500
@@ -234,6 +234,7 @@
   entry->seekable_stream=True;
   entry->description="Magick Vector Graphics";
   entry->module="MVG";
+  entry->extension_treatment=IgnoreExtensionTreatment;
   (void) RegisterMagickInfo(entry);
 }