diff --git a/contrib/babel/lisp/langs/org-babel-clojure.el b/contrib/babel/lisp/langs/org-babel-clojure.el
index ffd07ec82..cd72d9394 100644
--- a/contrib/babel/lisp/langs/org-babel-clojure.el
+++ b/contrib/babel/lisp/langs/org-babel-clojure.el
@@ -127,8 +127,9 @@ specifying a var of the same value."
   (let ((vars-forms (mapconcat ;; define any variables
                       (lambda (pair)
                         (format "%s %s" (car pair) (org-babel-clojure-var-to-clojure (cdr pair))))
-                      vars "\n      ")))
-    (format "(let [%s]\n  %s)" vars-forms (org-babel-trim body))))
+                      vars "\n      "))
+	(body (org-babel-trim body)))
+    (if (> (length vars-forms) 0) (format "(let [%s]\n  %s)" vars-forms body) body)))
 
 (defun org-babel-prep-session:clojure (session params)
   "Prepare SESSION according to the header arguments specified in PARAMS."
diff --git a/contrib/babel/lisp/langs/org-babel-emacs-lisp.el b/contrib/babel/lisp/langs/org-babel-emacs-lisp.el
index 073ee3daf..f15afe3e8 100644
--- a/contrib/babel/lisp/langs/org-babel-emacs-lisp.el
+++ b/contrib/babel/lisp/langs/org-babel-emacs-lisp.el
@@ -45,15 +45,16 @@
          (processed-params (org-babel-process-params params))
          (result-params (third processed-params))
          (print-level nil) (print-length nil)
-         (body (concat "(let ("
-                       (mapconcat
-                        (lambda (var) (format "%S" (print `(,(car var) ',(cdr var)))))
-                        vars "\n      ")
-                       ")\n"
-                       (if (or (member "code" result-params)
-                               (member "pp" result-params))
-                           (concat "(pp " body ")") body) ")")))
-    body))
+         (body (if (> (length vars) 0)
+		   (concat "(let ("
+			 (mapconcat
+			  (lambda (var) (format "%S" (print `(,(car var) ',(cdr var)))))
+			  vars "\n      ")
+			 ")\n" body ")")
+		 body)))
+    (if (or (member "code" result-params)
+	    (member "pp" result-params))
+	(concat "(pp " body ")") body)))
 
 (defun org-babel-execute:emacs-lisp (body params)
   "Execute a block of emacs-lisp code with org-babel."
diff --git a/contrib/babel/lisp/org-babel-tangle.el b/contrib/babel/lisp/org-babel-tangle.el
index b66d66ee6..2f7f8a223 100644
--- a/contrib/babel/lisp/org-babel-tangle.el
+++ b/contrib/babel/lisp/org-babel-tangle.el
@@ -187,13 +187,16 @@ code blocks by language."
                   (cons
                    (cons src-lang
                          (cons (list link source-name params
-                                     (funcall
-                                      (intern
-                                       (concat "org-babel-expand-body:" src-lang))
+                                     ((lambda (body)
+                                        (if (assoc :no-expand params)
+                                            body
+                                          (funcall
+                                           (intern (concat "org-babel-expand-body:" src-lang))
+                                           body
+                                           params)))
                                       (if (and (cdr (assoc :noweb params))
                                                (string= "yes" (cdr (assoc :noweb params))))
-                                          (org-babel-expand-noweb-references info) (second info))
-                                      params)
+                                          (org-babel-expand-noweb-references info) (second info)))
                                      (third (cdr (assoc
                                                   src-lang org-babel-tangle-langs))))
                                by-lang)) blocks))))))