diff --git a/lisp/ob-core.el b/lisp/ob-core.el
index 30020f7ee..e3abe9762 100644
--- a/lisp/ob-core.el
+++ b/lisp/ob-core.el
@@ -321,8 +321,8 @@ name of the code block."
 Do not query the user."
   (org-babel-check-confirm-evaluate info
     (not (when noeval
-	   (message (format "Evaluation of this%scode-block%sis disabled."
-			    code-block block-name))))))
+	   (message "Evaluation of this%scode-block%sis disabled."
+                    code-block block-name)))))
 
  ;; dynamically scoped for asynchronous export
 (defvar org-babel-confirm-evaluate-answer-no)
@@ -348,8 +348,8 @@ of potentially harmful code."
 		    (yes-or-no-p
 		     (format "Evaluate this%scode block%son your system? "
 			     code-block block-name)))
-	     (message (format "Evaluation of this%scode-block%sis aborted."
-			      code-block block-name)))))))
+	     (message "Evaluation of this%scode-block%sis aborted."
+                      code-block block-name))))))
 
 ;;;###autoload
 (defun org-babel-execute-safely-maybe ()
diff --git a/lisp/ob-fortran.el b/lisp/ob-fortran.el
index baeb4ba0d..6bd5fb510 100644
--- a/lisp/ob-fortran.el
+++ b/lisp/ob-fortran.el
@@ -149,15 +149,14 @@ of the same value."
      ;; val is a matrix
      ((and (listp val) (org-every #'listp val))
       (format "real, parameter :: %S(%d,%d) = transpose( reshape( %s , (/ %d, %d /) ) )\n"
-	      var (length val) (length (car val)) 
+	      var (length val) (length (car val))
 	      (org-babel-fortran-transform-list val)
 	      (length (car val)) (length val)))
      ((listp val)
       (format "real, parameter :: %S(%d) = %s\n"
 	      var (length val) (org-babel-fortran-transform-list val)))
      (t
-      (error (format "the type of parameter %s is not supported by ob-fortran"
-		     var))))))
+      (error "the type of parameter %s is not supported by ob-fortran" var)))))
 
 (defun org-babel-fortran-transform-list (val)
   "Return a fortran representation of enclose syntactic lists."
diff --git a/lisp/ox-latex.el b/lisp/ox-latex.el
index c3eb1eaaf..ddb964960 100644
--- a/lisp/ox-latex.el
+++ b/lisp/ox-latex.el
@@ -3433,7 +3433,7 @@ Return PDF file name or an error if it couldn't be produced."
 			      default-directory))
 	 (time (current-time))
 	 warnings)
-    (unless snippet (message (format "Processing LaTeX file %s..." texfile)))
+    (unless snippet (message "Processing LaTeX file %s..." texfile))
     (save-window-excursion
       (cond
        ;; A function is provided: Apply it.
diff --git a/lisp/ox-man.el b/lisp/ox-man.el
index 6388a5530..f9d37ac3f 100644
--- a/lisp/ox-man.el
+++ b/lisp/ox-man.el
@@ -1196,7 +1196,7 @@ Return PDF file name or an error if it couldn't be produced."
 				(file-name-directory full-name)
 			      default-directory))
          errors)
-    (message (format "Processing Groff file %s..." file))
+    (message "Processing Groff file %s..." file)
     (save-window-excursion
       (cond
        ;; A function is provided: Apply it.
diff --git a/lisp/ox-odt.el b/lisp/ox-odt.el
index e578a1776..fa86bd074 100644
--- a/lisp/ox-odt.el
+++ b/lisp/ox-odt.el
@@ -1410,8 +1410,8 @@ original parsed data.  INFO is a plist holding export options."
 	 ((member styles-file-type '("odt" "ott"))
 	  (org-odt--zip-extract styles-file "styles.xml" org-odt-zip-dir)))))
      (t
-      (error (format "Invalid specification of styles.xml file: %S"
-		     (plist-get info :odt-styles-file)))))
+      (error "Invalid specification of styles.xml file: %S"
+	     (plist-get info :odt-styles-file))))
 
     ;; create a manifest entry for styles.xml
     (org-odt-create-manifest-file-entry "text/xml" "styles.xml")
diff --git a/lisp/ox-texinfo.el b/lisp/ox-texinfo.el
index df56b6708..85b3dee12 100644
--- a/lisp/ox-texinfo.el
+++ b/lisp/ox-texinfo.el
@@ -1589,7 +1589,7 @@ Return INFO file name or an error if it couldn't be produced."
 				(file-name-directory full-name)
 			      default-directory))
 	 errors)
-    (message (format "Processing Texinfo file %s..." file))
+    (message "Processing Texinfo file %s..." file)
     (save-window-excursion
       ;; Replace %b, %f and %o with appropriate values in each command
       ;; before applying it.  Output is redirected to "*Org INFO