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-rw-r--r--lisp/calc/calc.el3
1 files changed, 2 insertions, 1 deletions
diff --git a/lisp/calc/calc.el b/lisp/calc/calc.el
index 3d78599ecc1..ceee013e493 100644
--- a/lisp/calc/calc.el
+++ b/lisp/calc/calc.el
@@ -231,7 +231,8 @@
(f90-mode . fortran))
"*Alist of major modes with appropriate Calc languages."
:group 'calc
- :type '(alist :key-type symbol :value-type symbol))
+ :type '(alist :key-type (symbol :tag "Major mode")
+ :value-type (symbol :tag "Calc language")))
(defcustom calc-embedded-announce-formula
"%Embed\n\\(% .*\n\\)*"