Renamed new enumeration.
diff --git a/coders/xbm.c b/coders/xbm.c
index 239fba2..3b3b314 100644
--- a/coders/xbm.c
+++ b/coders/xbm.c
@@ -422,7 +422,7 @@
   entry->decoder=(DecodeImageHandler *) ReadXBMImage;
   entry->encoder=(EncodeImageHandler *) WriteXBMImage;
   entry->magick=(IsImageFormatHandler *) IsXBM;
-  entry->flags^=Adjoin;
+  entry->flags^=CoderAdjoinFlag;
   entry->description=ConstantString(
     "X Windows system bitmap (black and white)");
   entry->module=ConstantString("XBM");