diff --git a/src/server/mux-parse.c b/src/server/mux-parse.c
index 9b66ab9f5cc5c0ab88025065257d13ac0cafa3fd..037d1bb96f87d3ce124bc6931a47b657f596436c 100644
--- a/src/server/mux-parse.c
+++ b/src/server/mux-parse.c
@@ -33,7 +33,7 @@ mux_get_token(Mux *mux)
     old_first = mux->parse.first_to_parse;
     
     result = s_strtok(mux->parse.unparsed, &mux->parse.first_to_parse,
-		      s_fcrea_str(" \t\n\r"));
+		      s_fcrea_str(WHITESPACE));
 
     /* Check that there was at least one trailing blank. */