diff --git a/lang/cem/cemcom.ansi/struct.c b/lang/cem/cemcom.ansi/struct.c
index 2aac4a0eb..b7e5c00dd 100644
--- a/lang/cem/cemcom.ansi/struct.c
+++ b/lang/cem/cemcom.ansi/struct.c
@@ -266,7 +266,7 @@ idf2sdef(idf, tp)
 	
 	/* Follow chain from idf, to meet tp. */
 	while ((sdef = *sdefp))	{
-		if (equal_type(sdef->sd_stype, tp, 0))
+		if (equal_type(sdef->sd_stype, tp, -999))	/* ??? hack */
 			return sdef;
 		sdefp = &(*sdefp)->next;
 	}