diff --git a/libs/sofia-sip/libsofia-sip-ua/sdp/sdp.docs b/libs/sofia-sip/libsofia-sip-ua/sdp/sdp.docs
index 8fa07ac8b7..d351064c1d 100644
--- a/libs/sofia-sip/libsofia-sip-ua/sdp/sdp.docs
+++ b/libs/sofia-sip/libsofia-sip-ua/sdp/sdp.docs
@@ -106,7 +106,7 @@ size_t increment_sdp_version(char buf[], size_t bsize,
   }
   else {
     fprintf(stderr, "increment_sdp_version: %s\n", 
-            sdp_parsing_error(p));
+            sdp_parsing_error(parser));
   }
 
   sdp_parser_free(parser);