diff --git a/scheme/httpd/surflets/web-server/root/surflets/calculate.scm b/scheme/httpd/surflets/web-server/root/surflets/calculate.scm
index e28c864..fd1dfe7 100644
--- a/scheme/httpd/surflets/web-server/root/surflets/calculate.scm
+++ b/scheme/httpd/surflets/web-server/root/surflets/calculate.scm
@@ -55,14 +55,14 @@
 		     (td ,(operator-symbol operator-pair))
 		     (td ,number-field2)
 		     (td " = ")
-		     (td ,(make-submit-button '(value "calculate"))))))
+		     (td ,(make-submit-button '(@ (value "calculate")))))))
 	       (hr)
 	       (p "You may choose another operator:")
 	       (servlet-form
 		,change-operator-callback
 		(table
 		 (tr (td ,operator-input-field)
-		     (td ,(make-submit-button '(value "change operator"))))))))))
+		     (td ,(make-submit-button '(@ (value "change operator")))))))))))
 		     
     (define (change-operator to-operation)
       (show-page to-operation))