diff --git a/lib/asn1/lex.l b/lib/asn1/lex.l
index 195e6a813..d9f1040b6 100644
--- a/lib/asn1/lex.l
+++ b/lib/asn1/lex.l
@@ -58,7 +58,8 @@ static void unterminated(const char *, unsigned);
 
 %}
 
-/* This is for Solaris 10 lex that doesn't grow its tables automagicly */
+/* This is for broken old lexes (solaris 10 and hpux)
+%e 2000
 %p 5000
 %a 5000
 %n 1000