diff --git a/lisp/ob-exp.el b/lisp/ob-exp.el
index 448eaeda7..1fc65249d 100644
--- a/lisp/ob-exp.el
+++ b/lisp/ob-exp.el
@@ -243,9 +243,7 @@ This function is called by `org-babel-exp-do-export'.  The code
 block will be evaluated.  Optional argument SILENT can be used to
 inhibit insertion of results into the buffer."
   (when (and org-export-babel-evaluate
-	     (not (and hash
-		       (equal hash (org-babel-exp-in-export-file (nth 0 info)
-				     (org-babel-result-hash info))))))
+	     (not (and hash (equal hash (org-babel-current-result-hash)))))
     (let ((lang (nth 0 info))
 	  (body (nth 1 info)))
       ;; skip code blocks which we can't evaluate
diff --git a/lisp/ob.el b/lisp/ob.el
index c554fe11d..4f6199500 100644
--- a/lisp/ob.el
+++ b/lisp/ob.el
@@ -782,9 +782,9 @@ the current subtree."
 			 (nth 1 info))))
 	 (sha1 it))))))
 
-(defun org-babel-result-hash (&optional info)
+(defun org-babel-current-result-hash ()
   "Return the in-buffer hash associated with INFO."
-  (org-babel-where-is-src-block-result nil info)
+  (org-babel-where-is-src-block-result)
   (org-babel-clean-text-properties (match-string 3)))
 
 (defun org-babel-hide-hash ()