diff --git a/flan-utils.lisp b/flan-utils.lisp
index c10c27c..0e36978 100644
--- a/flan-utils.lisp
+++ b/flan-utils.lisp
@@ -121,7 +121,7 @@
 	while line do (funcall fi line)))
 
   
-  (defun map-lines (stream func &key
+  (defun map-lines (func stream &key
 				  (ignore nil)
 				  (applicator #'list)
 				  (mapper #'mapcar)
@@ -151,31 +151,31 @@ The default behaviour (with `mapper' being `mapcar' and `applicator' being `list
 				    while (and line (funcall continue line))
 				    collect (let ((line (funcall transform line)))
 					      (when (funcall filter-single-line line) line))))))))
-  (defmacro map-file-lines (location func &rest kvs &key &allow-other-keys)
+  (defmacro map-file-lines (func location &rest kvs &key &allow-other-keys)
     "See `map-lines'(): Maps `func' over a file `location' instead of a stream."
     (let ((stream (gensym)))
       `(with-open-file (,stream ,location :direction :input)
-	 ,(cons 'map-lines (append `(,stream ,func) kvs)))))
+	 ,(cons 'map-lines (append `(,func ,stream) kvs)))))
 
-  (defun mapcan-lines (stream func &rest kvs &key &allow-other-keys)
+  (defun mapcan-lines (func stream &rest kvs &key &allow-other-keys)
     "See `map-lines'(): Uses `nconc'() as the applicator and `mapcar'() as the mapper, which produces an output you'd expect from `mapcan'() The other key arguments can be specified according to the signature of `map-lines'()."
-    (apply #'map-lines (append (list stream func :applicator #'nconc :mapper #'mapcar) kvs)))
+    (apply #'map-lines (append (list func stream :applicator #'nconc :mapper #'mapcar) kvs)))
   
-  (defmacro mapcan-file-lines (location func &rest kvs &key &allow-other-keys)
+  (defmacro mapcan-file-lines (func location &rest kvs &key &allow-other-keys)
     "See `mapcan-lines'(): Maps `func' over a file `location' instead of a stream."
     (let ((stream (gensym)))
       `(with-open-file (,stream ,location :direction :input)
-	 ,(cons 'mapcan-lines (append `(,stream ,func) kvs)))))
+	 ,(cons 'mapcan-lines (append `(,func ,stream) kvs)))))
   
-  (defun mapcon-lines (stream func &rest kvs &key &allow-other-keys)
+  (defun mapcon-lines (func stream &rest kvs &key &allow-other-keys)
     "See `map-lines'(): Uses `nconc'() as the applicator and `maplist'() as the mapper, which produces an output you'd expect from `mapcon'(). The other key arguments can be specified according to the signature of `map-lines'()."
-    (apply #'map-lines (append (list stream func :applicator #'nconc :mapper #'maplist) kvs)))
+    (apply #'map-lines (append (list func stream :applicator #'nconc :mapper #'maplist) kvs)))
   
-  (defmacro mapcon-file-lines (location func &rest kvs &key &allow-other-keys)
+  (defmacro mapcon-file-lines (func location &rest kvs &key &allow-other-keys)
     "See `mapcon-lines'(): Maps `func' over a file `location' instead of a stream."
     (let ((stream (gensym)))
       `(with-open-file (,stream ,location :direction :input)
-	 ,(cons 'mapcon-lines (append `(,stream ,func) kvs)))))
+	 ,(cons 'mapcon-lines (append `(,func ,stream) kvs)))))
   
 (defun strcat (&rest str)
   "Concat all strings, if item is not string it is written to one."