diff --git a/coders/ps3.c b/coders/ps3.c
index ed5135c..b2472dd 100644
--- a/coders/ps3.c
+++ b/coders/ps3.c
@@ -129,11 +129,13 @@
entry->encoder=(EncodeImageHandler *) WritePS3Image;
entry->description=ConstantString("Level III Encapsulated PostScript");
entry->module=ConstantString("PS3");
+ entry->seekable_stream=MagickTrue;
(void) RegisterMagickInfo(entry);
entry=SetMagickInfo("PS3");
entry->encoder=(EncodeImageHandler *) WritePS3Image;
entry->description=ConstantString("Level III PostScript");
entry->module=ConstantString("PS3");
+ entry->seekable_stream=MagickTrue;
(void) RegisterMagickInfo(entry);
return(MagickImageCoderSignature);
}