diff --git a/lib/asn1/der.h b/lib/asn1/der.h
index b1fbf53ac..153b1747c 100644
--- a/lib/asn1/der.h
+++ b/lib/asn1/der.h
@@ -64,6 +64,8 @@ enum {
      UT_GeneralString = 27
 };
 
+#define ASN1_INDEFINITE 0xdce0deed
+
 #ifndef HAVE_TIMEGM
 time_t timegm (struct tm *);
 #endif