diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 3dc8a58..c3d1009 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -47,7 +47,7 @@ jobs:
               --trace \
               --time \
               --color=always \
-              test
+              test -u on,coveralls
 
       - name: Ensure clean byte-compilation
         run: |
diff --git a/Eldev b/Eldev
index e8c6f83..5a24cc1 100644
--- a/Eldev
+++ b/Eldev
@@ -6,10 +6,11 @@
 ;(eldev-use-package-archive 'melpa)
 
 (eldev-use-plugin 'autoloads)
+(eldev-use-plugin 'undercover)
 
 (eldev-defcommand tag (tag)
   "Make a new tag"
-  :parameters     "TAG"
+  :parameters "TAG"
   (unless tag
     (signal 'eldev-wrong-command-usage))
   (let ((name "typewriter-roll-mode.el")