diff --git a/lang/cem/cpp.ansi/macro.str b/lang/cem/cpp.ansi/macro.str
index 8adec26aa..391c45080 100644
--- a/lang/cem/cpp.ansi/macro.str
+++ b/lang/cem/cpp.ansi/macro.str
@@ -30,15 +30,6 @@ struct macro	{
 
 /* ALLOCDEF "macro" 20 */
 
-struct mlist {
-	struct mlist *next;
-	struct macro *m_mac;
-	char *m_repl;
-	char m_unstack;
-};
-
-/* ALLOCDEF "mlist" 20 */
-
 /* `token' numbers of keywords of command-line processor
 */
 #define	K_UNKNOWN	0