diff --git a/libs/sofia-sip/.update b/libs/sofia-sip/.update
index 11fed516ff..dd6ed5177e 100644
--- a/libs/sofia-sip/.update
+++ b/libs/sofia-sip/.update
@@ -1 +1 @@
-Sun May 25 10:57:08 EDT 2008
+Sun May 25 10:58:52 EDT 2008
diff --git a/libs/sofia-sip/libsofia-sip-ua/sip/sip_util.c b/libs/sofia-sip/libsofia-sip-ua/sip/sip_util.c
index ab87a03d3b..0b017d5390 100644
--- a/libs/sofia-sip/libsofia-sip-ua/sip/sip_util.c
+++ b/libs/sofia-sip/libsofia-sip-ua/sip/sip_util.c
@@ -364,17 +364,17 @@ sip_sanity_check(sip_t const *sip)
  */
 issize_t sip_header_field_d(su_home_t *home, sip_header_t *h, char *s, isize_t slen)
 {
-  assert(SIP_HDR_TEST(h));
-
   if (h && s && s[slen] == '\0') {
     size_t n = span_lws(s);
     s += n; slen -= n;
-    
+
     for (n = slen; n >= 1 && IS_LWS(s[n - 1]); n--)
       ;
     
     s[n] = '\0';
     
+    assert(SIP_HDR_TEST(h));
+
     return h->sh_class->hc_parse(home, h, s, slen);
   }
   else