diff -u pgnus/lisp/gnus-score.el~ pgnus/lisp/gnus-score.el
--- pgnus/lisp/gnus-score.el~	Mon Sep  6 11:15:46 1999
+++ pgnus/lisp/gnus-score.el	Mon Sep  6 11:15:46 1999
@@ -502,7 +502,7 @@
 	    (?s "subject" nil nil string)
 	    (?b "body" "" nil body-string)
 	    (?h "head" "" nil body-string)
-	    (?i "message-id" nil t string)
+	    (?i "message-id" nil nil string)
 	    (?r "references" "message-id" nil string)
 	    (?x "xref" nil nil string)
 	    (?e "extra" nil nil string)