diff --git a/src/server/prot-a-parse.c b/src/server/prot-a-parse.c
index 1914341be85b2de1cacbb4f1f27484283699397e..45c200fdae122478ba3049de95cfac893483d512 100644
--- a/src/server/prot-a-parse.c
+++ b/src/server/prot-a-parse.c
@@ -249,7 +249,7 @@ prot_a_get_token(Connection *client)
     old_first = client->first_to_parse;
     
     result = s_strtok(client->unparsed, &client->first_to_parse,
-		      s_fcrea_str(" \t\n\r"));
+		      s_fcrea_str(WHITESPACE));
 
     /* Check that there was at least one trailing blank. */