diff --git a/src/edns0.c b/src/edns0.c
index a8d8cb6..9f66766 100644
--- a/src/edns0.c
+++ b/src/edns0.c
@@ -145,7 +145,7 @@ size_t add_pseudoheader(struct dns_header *header, size_t plen, unsigned char *l
 	  if (i + len > rdlen)
 	    {
 	      rdlen = 0;
-	      islast = 0;
+	      is_last = 0;
 	      break;
 	    }