diff --git a/lisp/calendar/lunar.el b/lisp/calendar/lunar.el
index 4f8f34d954f..5b22043102d 100644
--- a/lisp/calendar/lunar.el
+++ b/lisp/calendar/lunar.el
@@ -245,10 +245,11 @@ use instead of point."
         (insert
          (mapconcat
           (lambda (x)
-            (format "%s: %s %s %s" (calendar-date-string (car x))
-                    (lunar-phase-name (nth 2 x))
-                    (cadr x)
-		    (car (last x))))
+            (let ((eclipse (nth 3 x)))
+              (concat (calendar-date-string (car x)) ": "
+                      (lunar-phase-name (nth 2 x)) " "
+                      (cadr x) (unless (string-empty-p eclipse) " ")
+                      eclipse)))
           (lunar-phase-list m1 y1) "\n")))
       (message "Computing phases of the moon...done"))))
 
@@ -283,9 +284,13 @@ use when highlighting the day in the calendar."
     (while (calendar-date-compare phase (list date))
       (setq index (1+ index)
             phase (lunar-phase index)))
-    (if (calendar-date-equal (car phase) date)
-        (cons mark (concat (lunar-phase-name (nth 2 phase)) " "
-                           (cadr phase))))))
+    (and (calendar-date-equal (car phase) date)
+         (cons mark
+               (let ((eclipse (nth 3 phase)))
+                 (concat (lunar-phase-name (nth 2 phase)) " "
+                         (cadr phase)
+                         (unless (string-empty-p eclipse) " ")
+                         eclipse))))))
 
 ;; For the Chinese calendar the calculations for the new moon need to be more
 ;; accurate than those above, so we use more terms in the approximation.
diff --git a/test/lisp/emacs-lisp/bytecomp-tests.el b/test/lisp/emacs-lisp/bytecomp-tests.el
index 4b0a714e52d..00abe730948 100644
--- a/test/lisp/emacs-lisp/bytecomp-tests.el
+++ b/test/lisp/emacs-lisp/bytecomp-tests.el
@@ -886,19 +886,20 @@ byte-compiled.  Run with dynamic binding."
     ;; Should not warn that mt--test2 is not known to be defined.
     (should-not (re-search-forward "my--test2" nil t))))
 
-(defmacro bytecomp--with-warning-test (re-warning form)
+(defun bytecomp--with-warning-test (re-warning form)
   (declare (indent 1))
-  `(with-current-buffer (get-buffer-create "*Compile-Log*")
+  `(bytecomp--with-warning-test-1 ,re-warning ,form))
+(defun bytecomp--with-warning-test-1 (re-warning form)
+  (with-current-buffer (get-buffer-create "*Compile-Log*")
      (let ((inhibit-read-only t)) (erase-buffer))
      (let ((text-quoting-style 'grave)
-           (macroexp--warned
-            (make-hash-table :test #'equal :weakness 'key))   ; oh dear
-           (form ,form))
+           (macroexp--warned            ; oh dear
+            (make-hash-table :test #'equal :weakness 'key)))
        (ert-info ((prin1-to-string form) :prefix "form: ")
          (byte-compile form)
          (ert-info ((prin1-to-string (buffer-string)) :prefix "buffer: ")
            (should (re-search-forward
-                    (string-replace " " "[ \n]+" ,re-warning))))))))
+                    (string-replace " " "[ \n]+" re-warning))))))))
 
 (ert-deftest bytecomp-warn-wrong-args ()
   (bytecomp--with-warning-test "remq.*3.*2"